Remove/install/overhaul Toyota Supra A70

INTRODUCTION

Removal, overhaul and installation procedures (when given by manufacturer) are covered in this section. If component removal and installation is primarily an unbolt and bolt on procedure, a simple tightening specification will be suspected.

REMOVAL

1. Drain cooling system. Disconnect air intake hose. Disconnect emission control hoses from air cleaner. Remove air cleaner mounting bolt and wing nut. Remove air cleaner.
2. Disconnect accelerator cable. Disconnect throttle cable (A/T). Disconnect carburetor wiring connector. Disconnect emission control hoses and tag for installation. Disconnect fuel inlet hose. Remove 4 carburetor mounting nuts and No. 1 vacuum pipe. Remove carburetor.

Air Horn

1. Remove air cleaner setting bolt. Remove fuel pipe clamp, union, fuel pipe and gaskets. Remove vacuum hoses. Remove pump and pivot screw and pump arm with connecting link. Disconnect choke link and choke opener link. 2 Remove 8 air horn screws and number plate, fuel pipe support and wire clamps. Remove air horn from carburetor body. Disconnect wiring from solenoid valves.
2. Remove float pivot pin, float and needle valve assembly. Remove air horn gasket, needle valve seat and gasket, power piston retainer, power piston and spring. Remove pump plunger and boot. (Scheme 2)

Scheme 1

Scheme 2

Main Body

1. Remove solenoid valves from carburetor body. Remove stopper gasket. Disconnect throttle positioner links and remove bracket attaching bolts. Remove accelerator pump retainer gasket and remove pump discharge weight, long spring and discharge large ball. (Scheme 1)
2. Remove pump dampening spring. Using tweezers, remove plunger retainer and check ball. Disconnect throttle positioner link and throttle position levers, washer and spring. Remove primary and secondary main passage plugs and gaskets. Remove primary and secondary main jets and gaskets.
3. Remove auxiliary acceleration pump (AAP) housing, spring and diaphragm. Remove AAP inlet plug and check ball. Remove outlet plug, short spring and small ball. Remove primary and secondary small venturies.
4. Remove sight glass retainer, sight glass and "O" ring. Remove throttle lever return spring and back spring. Remove throttle lever and fast idle cam.
5. Disconnect link and remove secondary throttle valve diaphragm assembly and gasket. Remove throttle position switch and bracket. Remove 3 body-to-flange screws and vacuum passage screw. Separate body from flange. (Scheme 3) Remove washer from throttle valve shaft. Remove idle mixture adjusting screw and idle speed adjusting screw.

Scheme 3

CLEANING

Note. Do not immerse synthetic parts, electrical components or diaphragm assemblies in carburetor cleaner.

Remove carbon from around throttle valve and clean cast parts with carburetor cleaner. Clean jets, fuel passages and vacuum ports with compressed air. Do not use wire or similar metal objects. Clean all other parts with solvent and soft brush.

Choke Heater

Measure resistance between inner half of thermostat housing and wire connector. Resistance at 68°F (20°C) should be 17-19 ohms. Replace air horn if resistance is not within specification.

Primary & Secondary Solenoid Valves

Ensure valve clicks as each solenoid is connected and disconnected from battery. Replace solenoid if it fails to operate properly.

Throttle Position Switch

Connect an ohmmeter between switch connector and switch body. With rod not pushed in, continuity should be present. With rod pushed in, no continuity should be present. Replace throttle position switch if not to specification.

REASSEMBLY & ADJUSTMENTS

Note. Some adjustments require use of Toyota carburetor gauge sets (009240-00014 and 09240-00020).

Note. For idle speed and mixture adjustments, see ADJUSTMENTS article.

1. To reassemble, reverse disassembly procedure. When assembling flange parts, ensure vacuum passage bolt is installed in correct position. Ensure springs are installed in proper location and check balls are located in appropriate orifices.
2. When installing pump discharge weight and outlet valve assembly, ensure all components are installed in correct order. After installing power piston, check piston for smooth operation.
3. If choke valve has been separated from shaft, peen new retaining screws after valve is installed on shaft. Tighten air horn screws gradually and alternately to prevent distortion.

Float Level

Remove air horn gasket. Invert air horn and allow float to hang by its own weight. Measure clearance between top of float and air horn. Clearance should be 0.283" (7.2 mm). Adjust clearance by bending float arm tab.

Float Drop

1. Invert air horn. Lift up float and measure clearance between needle valve and float arm. (Scheme 4) Clearance should be.066-.078" (1.67-1.99 mm).
2. Adjust clearance by bending outer float tab "B". (Scheme 5) Install needle valve clip after completing float adjustments.

Scheme 4

Scheme 5

Primary & Secondary Throttle Valves

Invert carburetor, insert angle gauge and separately measure angle of primary and secondary throttle valves at full throttle. Primary throttle valve angle should be 90 degrees from horizontal plane. Secondary throttle valve angle should be 80 degrees. Adjust by bending throttle lever stop.

Fast Idle (Bench Adjustment)

Position throttle shaft lever to high (first) step of fast idle cam. Close choke valve and measure primary throttle valve angle. Angle should be 21 degrees. Adjust by turning fast idle adjustment screw.

Choke Unloader

Fully open primary throttle valve, insert angle gauge and measure primary throttle valve angle. Angle should be 21 degrees. Adjust by turning fast idle adjustment screw.

Fully open primary throttle valve, insert angle gauge and measure choke valve angle. Angle should be 41 degrees. Bend fast idle lever to adjust. (Scheme 6)

Scheme 6

Choke Opener

1. Set fast idle cam, open throttle slightly and gently push choke valve closed. Keep choke valve closed and released throttle valve.
2. Apply vacuum to choke opener diaphragm and measure choke valve angle. Angle should be 74 degrees. Adjust by bending tang on relief lever, connecting choke opener link to choke valve shaft.

Scheme 7

1. Fully close choke valve. Apply vacuum to choke breaker inner diaphragm "A". Measure choke valve angle. Angle should be 38 degrees. (Scheme 7)
2. Adjust by bending tang on relief lever, connecting breaker diaphragm link to choke valve shaft.
3. Apply vacuum to both choke breaker diaphragm "A" and "B". Measure choke valve angle. Angle should be 58 degrees. Adjust by turning diaphragm adjustment screw.

Kick-Up Setting

With primary throttle valve fully opened, check clearance between secondary throttle valve and body. (Scheme 8) Clearance should be.0063-.0106" (.16-.27 mm). Adjust by bending secondary throttle lever.

Scheme 8

Secondary Touch Angle

Check primary throttle valve opening angle as primary kick lever touches secondary kick lever. Angle should be 52 degrees. Adjust by bending primary kick lever. (Scheme 9)

Scheme 9

Accelerator Pump Stroke

Place a straightedge on top of air horn. Fully open choke valve and measure full travel of pump plunger. Plunger travel shold be.157" (4.0 mm). Adjust pump stroke by bending linkage rod at existing bend. (Scheme 10)

Scheme 10

1. Connect ohmmeter to connector and switch body. With throttle valve fully open, ensure no continuity is present.
2. Slowly return throttle valve to a position where no continuity is present. Throttle valve angle at this point should be 9 degrees. If not to specification, adjust throttle position switch using adjusting screw.

INSTALLATION

Note. For idle speed and mixture adjustments, see ADJUSTMENTS article.

To install, reverse removal procedure.

ADJUSTMENT SPECS - COROLLA CARBURETOR

ADJUSTMENT SPECS - COROLLA CARBURETOR

ADJUSTMENT SPECS - COROLLA CARBURETOR

ADJUSTMENT SPECS - COROLLA CARBURETOR

1. Disconnect emission control hoses. Disconnect air intake hose. Remove 2 air cleaner mounting nuts and wing nut. Remove air cleaner. Disconnect emission control hoses from carburetor and note location for reassembly.
2. Remove PCV hose from flange. Disconnect fuel hose and wiring connectors. Disconnect acclerator linkage. Remove 4 carburetor mounting bolts and nuts. Remove carburetor.

DISASSEMBLY

Note. Manufacturer recommends using carburetor Driver Kit (09860-11011) to disassemble and reassemble carburetor.

1. Remove metering needle and disconnect fast idle link and air valve connecting rod. Remove 5 air horn screws and lift air horn from body. Remove air horn gasket.
2. Remove float pivot pin and float with needle valve. Remove needle valve seat. Loosen power piston retaining screw. Hold piston and rotate retainer. Remove piston and spring. Loosen 3 screws and remove outer vent control valve.

1. Remove slow jet using Jet Wrench (09922-00010). Remove power valve with jets, metering needle guides and secondary main jets.
2. Remove plug and primary main jets. Remove solenoid valve from body. Remove main and auxiliary acceleration pump housings, springs and diaphragms.
3. Disconnect idle-up diaphragm link and diaphragm. Disconnect choke opener link and remove choke opener. Remove 3 body-to-flange screws and remove flange from body.

Clean cast parts in carburetor cleaner and blow dry. Do not clean jets or other passages with wire or similar metal objects. Inspect all parts for wear or damage and replace necessary parts.

Measure choke heater resistance between terminal and housing. Resistance should measure 20-22 ohms at 68°F (20°C).

Choke Breaker, Choke Opener & Idle-Up Diaphragm

Apply vacuum to diaphragm and check for leakage. Ensure Link or vave moves as vacuum is applied.

Float & Needle Valve

Inspect pivot pin for scratches and wear. Check float for wear in pivot pin holes and broken lips. Inspect needle valve and seat for wear or damage and strainer for rust or breaks.

Outer Vent Control Valve

1. Check valve and seats for damage. Ensure valve rod moves smoothly. Connect valve terminal wire to battery positive post. Jumper valve body to battery negative post.
2. A click should be felt from control valve each time valve wire is connected and disconnected to battery positive post.

Primary Fuel-Cut Solenoid

Connect battery voltage to solenoid terminals. Check for a click as power is connected and disconnected. Inspect "O" ring for damage.

Power Piston

Inspect power piston and piston bore for wear and damage. Check spring for distortion or breaks.

Note. Some adjustments require use of Toyota carburetor gauge sets (09240-00014 and 09240-00020).

1. To reassemble, reverse disassembly procedure. When assembling flange parts, ensure vacuum passage bolt is installed in correct position. Ensure springs are installed in proper location and check balls are located in appropriate orifices.
2. When installing pump discharge weight and outlet valve assembly, ensure all components are installed in correct order. After installing power piston, check piston for smooth operation.
3. If choke valve has been separated from shaft, peen new retaining screws after valve is installed on shaft. Tighten air horn screws gradually and alternately to prevent distortion.

Scheme 11

Remove air horn gasket. Invert air horn and allow float to hang by its own weight. Measure clearance between top of float and air horn. Clearance should be.386" (9.8 mm). Adjust clearance by bending float arm at tab "A". (Scheme 12)

Scheme 12

Remove air horn gasket. Position air horn right-side up and let float hang by its own weight. Measure distance between bottom of float and air horn. Float drop measurement should be 1.89" (48mm). Adjust clearance by bending float tab "B". (Scheme 13)

Scheme 13

Unloader

Fully open primary throttle valve. Insert angle gauge and measure choke valve angle. Choke valve angle should measure 45 degrees. Adjust by bending primary throttle arm. (Scheme 14)

Scheme 14

Throttle Valve Opening

1. Invert carburetor and fully open throttle valves. Using an angle gauge, measure angle of primary and secondary throttle valves.
2. Angle of throttle valves should measure 90 degrees. Adjust by bending throttle arm. (Scheme 14)

Measure primary throttle valve angle as secondary throttle valve just begins to open. Primary throttle angle should measure 59 degrees.

Set throttle lever to high (first) step of fast idle cam. Fully close choke valve, insert angle gauge, and adjust primary throttle valve angle by turning fast idle adjusting screw. Angle adjustment is 23 degrees for California vehicles and 24.5 degrees for Federal.

Choke Breaker

Apply vacuum to choke breaker diaphragm. Close choke valve by hand, insert angle gauge, and measure choke valve angle. (Scheme 15) Choke valve angle should measure 42 degrees. Adjust by bending relief lever.

Scheme 15

1. Apply vacuum to choke opener diaphragm. Ensure fast idle cam is released to fourth step. If not, adjust by bending choke opener lever.
2. Close choke valve and set fast idle lever to first step. Ensure there is clearance between choke opener lever and fast idle cam.

Idle-Up (Throttle Positioner)

Apply vacuum to idle-up diaphragm, insert angle gauge, and measure throttle valve opening. Adjust throttle valve opening angle to 16.5 degrees by turning adjusting screw.

Scheme 16

1. Hold throttle slightly open and push choke valve closed. Hold it closed as throttle valve is released.
2. Lever "A" should be holding lever "B" locked. (Scheme 16) Lever "A" should move smoothly at step 2 or 3 of fast idle cam. Adjust by bending top of lever "A".
3. While holding throttle slightly open and choke valve closed, rotate lever "B" until it makes contact with lever "A". Measure clearance between secondary valve and bore. Check for a maximum clearance of.020" (.50 mm).
4. With choke valve opened above 52 degrees, ensure lever "A" unlocks when throttle valve is opened. Repeat step 1). Apply vacuum to choke opener and ensure lever "A" withdraws and lever "B" unlocks.

Note. For idle speed and mixture adjustments, see ADJUSTMENTS article.

To install, reverse removal procedure.

ADJUSTMENT SPECS - PICKUP CARBURETOR

1. Disconnect air intake hose. Remove wing nut and air cleaner lid. Disconnect emission control hoses from air cleaner. Remove mounting bolt and vacuum switching valve (VSV). Remove air cleaner. Disconnect fuel hose from union. Disconnect vacuum lines and note for reassembly.
2. Disconnect accelerator linkage. Disconnect electrical connectors. Remove 4 mounting bolts and carburetor. Remove carburetor heat insulator and mounting gaskets.

Scheme 17

1. With carburetor off vehicle, remove air cleaner support bracket. Remove throttle position switch. Remove fuel cut solenoid valve and gasket. Remove fuel line union and gaskets.
2. Install 4 mm bolt into suction chamber adjusting pin plug. Pry off plug with screwdrivers. (Scheme 17) Remove "O" ring. Turn over carburetor and shake out pin. Remove 3 screws and pull suction chamber, spring and piston from carburetor body.
3. Remove accelerator pump arm. Remove float bowl. Remove accelerator pump plunger and dust boots. Remove float and needle valve seat assembly. Remove throttle positioner. Remove vacuum tree adapter. Remove throttle position switch.

Note. Compensator removal is not recommended unless replacement is required.

Clean cast parts in carburetor cleaner and blow dry. Do not clean jets or other passages with wire or similar metal objects. Inspect all parts for wear or damage and replace necessary parts.

Note. Some adjustments require use of Toyota carburetor gauge sets (09240-00014 and 09240-00020).

Scheme 18

Scheme 19

1. Install valve seat over a new gasket into fuel inlet. Install needle valve, spring and plunger onto the seat. Install float and pivot pin. Allow float to hang by its weight. The distance between float and bottom of air horn (without gasket installed) should be 0.169" or 4.3 mm. (Scheme 18)and (Scheme 19). If not within specification, bend float lip.
2. Lift float and measure clearance between needle valve plunger and float lip. It should be 0.035-0.043" or (.9-1.1 mm). Bend float lip if not within specification. After adjusting float level, remove float, plunger, spring and needle valve. Install pin clip on needle valve. Replace float and needle assemblies.

If throttle valve adjusting screw has been removed or loosened, it must be adjusted. Tighten lock nut so it is 1/4-1/2 turn from touching throttle lever. The standard angle of throttle opening should be 87-93 degrees from horizontal plane. Adjust by bending throttle stop lever.

Scheme 20

1. Set fast idle adjusting cam to throttle lever roller. The throttle valve angle should be 18.7 degrees (M/T) or 19 degrees (A/T) from horizontal plane. Adjust by turning No. 1 fast idle adjusting screw. Separate fast idle adjusting cam from first lever.
2. Pry open a gap of 0.20" (5 mm) between fast idle cam and cold enrichment rod. (Scheme 20) Allow gap to close again. Flush compensator water pipe with tap water for 2-3 minutes. Apply vacuum to throttle positioner and measure throttle angle.

ADJUSTMENT - TERCEL FAST IDLE

Throttle Positioner Setting

The throttle valve angle should be 13.2 degrees from horizontal plane. Adjust by turning throttle positioner adjusting screw.

Unloader Adjustment

With throttle valve fully opened, measure piston lift stroke. A standard stroke is greater than 0.31" (8mm).

Scheme 21

Accelerator Pump Stroke Adjustment

Measure length of pump stroke. A standard stroke is 0.197-0.236" (5.0-6.0 mm). (Scheme 22)

Scheme 22

Scheme 23

Connect an ohmmeter between the connector and switch body. With the throttle valve fully open, check for continuity. (Scheme 23) Slowly return throttle valve to fully closed.

At the point where there is continuity, measure the throttle valve angle. The angle should be 11.5 degrees from horizontal plane. If not, adjust throttle position adjusting screw.

Fuel Heater & Cold Mixture Heater (CMH)

1. Fuel heater is located on the fuel bowl. Cold mixture heater is located between carburetor and intake manifold. Using an ohmmeter, measure resistance between float bowl terminals. Fuel heater resistance at 68°F (20°C) should be 2-6 ohms. If resistance is not within specification, float bowl should be replaced.
2. Using ohmmeter, measure resistance between terminals of Cold Mixture Heater (CMH). CMH resistance at 68°F (20°C) should be.5-2.2 ohms. If resistance is not correct, float bowl should be replaced.

Scheme 24

Throttle Valve Solenoid Actuator

Push in actuator rod and release. Ensure rod returns immediately to its original position. Connect battery voltage solenoid terminals. (Scheme 24) Attempt to depress push rod with finger. Push rod should not move.

Note. For idle speed and mixture adjustments, see ADJUSTMENTS article.

Install carburetor heat insulator with new gaskets. Install carburetor with 4 nuts. Connect all connectors, vacuum hoses and emission control hoses. Connect accelerator linkage. Connect fuel hose to union. Install air cleaner.

ADJUSTMENT SPECS - TERCEL CARBURETOR

Scheme 25

DISTRIBUTOR

Note. For timing specifications and procedures, see ADJUSTMENTS in this section.

Note. The cam position sensor for Supra Turbo (7M-GTE) will be covered in this section.

Removal (Camry 2VZ-FE)

Remove air cleaner cap, airflow meter and air cleaner hose. Disconnect spark plug wires from distributor cap. Disconnect distributor connection. Remove 2 distributor hold-down bolts. Remove distributor.

Installation (Camry 2VZ-FE)

Set No. 1 cylinder to TDC on compression stroke. Install new "O" ring into housing. Coat "O" ring with oil. Align cutout marks of coupling and housing. Insert distributor, aligning line of housing with distributor attachment bearing cut-out. (Scheme 26) Install hold-down bolts. Connect distributor connector and spark plug wires. Set timing.

Scheme 26

Removal (Camry & Celica 3S-FE)

Disconnect negative battery cable. Remove air cleaner hose. Disconnect spark plug wires from distributor cap. Disconnect distributor connection. Remove 2 distributor hold-down bolts. Remove distributor.

Installation (Camry & Celica 3S-FE)

Set No. 1 Cylinder to TDC on compression stroke. Install new "O" ring into housing. Coat "O" ring with oil. Align cutout marks of coupling with line on housing. Insert distributor, aligning center of distributor flange with bolt hole on block. Install spark plug wires and set timing. Tighten hold-down bolt.

Removal (Celica 3S-GE & 3S-GTE)

Disconnect negative battery cable. On 3S-GE, remove air cleaner hose. On 3S-GTE, remove intercooler. To remove intercooler, see TURBOCHARGERS in this section. Disconnect spark plug wires from distributor cap. Disconnect distributor connection. Remove 2 distributor hold-down bolts. Remove distributor.

Installation (Celica 3S-GE & 3S-GTE)

Set No. 1 cylinder to TDC on compression stroke. Install new "O" ring into housing. Coat "O" ring with oil. Align drilled mark (3S-GE) or cutout mark (3S-GTE) of coupling with groove mark of housing. (Scheme 27)and (Scheme 28). Insert distributor, aligning center of distributor flange with bolt hole on head. Install spark plug wires and set timing. Tighten hold-down bolt. To complete installation, reverse removal procedure.

Scheme 27

Scheme 28

Removal (Corolla 4A-F & 4A-FE)

Disconnect negative battery cable. Disconnect spark plug wires from distributor cap. Disconnect distributor connection and vacuum hoses (4A-F). Remove distributor hold-down bolts. Remove distributor.

Installation (Corolla 4A-F & 4A-FE)

Set No. 1 cylinder to TDC on compression stroke. Install new "O" ring into housing. Coat "O" ring with oil. Align protrusion on housing with coupling side groove. Insert distributor, aligning center of distributor flange with bolt hole on block. Install spark plug wires and set timing. Tighten hold-down bolt. Connect vacuum hoses.

Scheme 29

Removal (Corolla & MR2 4A-GE)

Disconnect negative battery cable. Disconnect spark plug wires from distributor cap. Disconnect distributor connection. Remove hold-down bolts. Remove distributor.

Installation (Corolla & MR2 4A-GE)

Set No. 1 cylinder to TDC on compression stroke. Remove oil filler cap and look for cavity on camshaft. Install new "O" ring into housing. Coat "O" ring with oil. Align drilled mark on driven gear with groove on housing. Insert distributor, aligning center of flange with bolt hole on head. Install spark plug wires and set timing. Tighten hold-down bolt.

Removal (Cressida & Supra 7M-GE)

1. Remove waterproof cover. Disconnect spark plug wires from distributor cap. Disconnect distributor connection. Remove oil filler cap. Turn crankshaft clockwise until cam lobe can be seen through oil filler hole.
2. Turn crankshaft counterclockwise approximately 120 degrees. Turn crankshaft clockwise again 10-40 degrees until timing marks on crankshaft pulley and timing cover align. Remove hold-down bolt and distributor.

Installation (Cressida & Supra 7M-GE)

Install new "O" ring into housing. Coat "O" ring with oil. Align groove on distributor housing with protrusion on top of drive gear teeth. (Scheme 30) Insert distributor, aligning center of distributor flange with bolt hole on head. Install spark plug wires and set timing. Tighten hold-down bolt.

Scheme 30

Removal (Land Cruiser 3F-E)

Remove air cleaner hose. Disconnect distributor connector. Disconnect ventilation hoses. Disconnect spark plug wires. Remove hold-down bolt and distributor.

Installation (Land Cruiser 3F-E)

Remove No. 1 spark plug and place finger over spark plug hole. Turn crankshaft clockwise until pressure is felt at TDC. Install spark plug. Turn oil pump shaft slot. (Scheme 31) Install new "O" ring into housing. Coat "O" ring with oil. Install distributor with mounting flange aligned with bolt hole on cylinder head and drilled mark on drive gear facing upward. (Scheme 32) Install spark plug wires and distributor cap. Set timing.

Scheme 31

Scheme 32

Removal (Pickup & 4Runner 22R & 22R-E)

Disconnect spark plug wires. Remove distributor cap. Disconnect distributor connector. Remove hold-down bolt. Remove distributor.

Note. Vacuum advance not used on 22R-E.

Installation (Pickup & 4Runner 22R & 22R-E)

1. Install new "O" ring into housing. Coat "O" ring with oil. Turn crankshaft until timing mark aligns TDC (22R) and 5° BTDC (22R-E). Check that rocker arms on No. 1 cylinder are loose. If rocker arms are not loose, turn crankshaft one full turn.
2. Temporarily install rotor. Begin inserting distributor with rotor pointing upward and distributor mounting hole aligned with mounting bolt hole. When fully installed, rotor should align with vacuum advance. (Scheme 33) Align rotor tooth with signal generator (pickup coil) projection. (Scheme 34) Install hold-down bolt. Install distributor cap and spark plug wires. Connect distributor connector. Set timing.

Scheme 33

Removal (Pickup & 4Runner 3VZ-E)

Disconnect spark plug wires. Disconnect distributor connector. Remove distributor cap and dustproof packing. Set No. 1 cylinder to TDC. Ensure distributor rotor points correctly. (Scheme 35) Remove hold-down bolt. Remove distributor.

Scheme 34

Scheme 35

Installation (Pickup & 4Runner 3VZ-E)

Install new "O" ring into housing. Coat "O" ring with oil. Align protrusion on top of drive gear teeth with groove on housing. Insert distributor with housing groove aligned with groove on No. 4 camshaft bearing cap. (Scheme 36) Install hold-down bolt, distributor cap and spark plug wires. Set timing and tighten hold-down bolt.

Scheme 36

Removal (Supra 7M-GTE Cam Position Sensor)

1. Disconnect negative battery cable. Disconnect cam position sensor connector. Set No. 1 cylinder to TDC. To verify TDC, remove oil filler cap and look for cam lobe facing upward.
2. Turn crankshaft counterclockwise approximately 120 degrees. Turn crankshaft clockwise again 10-40 degrees until timing marks on crankshaft pulley and timing cover align.
3. Remove air cleaner pipe and hoses. Remove airflow meter and air cleaner cap. Remove power steering reservoir tank. Remove hold-down bolt and cam position sensor.

Installation (Supra 7M-GTE Cam Position Sensor)

1. Install new "O" ring into housing. Coat "O" ring with oil. Align groove on sensor housing with drilled mark on driven gear. (Scheme 37) Insert cam position sensor with flange aligning with bolt hole on head. Lightly tighten hold-down bolt.
2. Install power steering reservoir. Install air cleaner hoses, air cleaner cap and airflow meter. Connect cam position sensor connector. Set timing and tighten hold-down bolt.

Scheme 37

Removal (Tercel 3E)

Disconnect spark plug wires. Disconnect distributor connector. Disconnect vacuum hoses. Set No. 1 cylinder to TDC on compression stroke. Remove hold-down bolt and distributor.

Installation (Tercel 3E)

Install new "O" ring into housing. Coat "O" ring with oil. Align protrusion on housing with groove of coupling side. (Scheme 38) Insert distributor with flange aligned with nut on valve cover. (Scheme 39) Install hold-down bolt. Connect spark plug wires and vacuum hoses. Set timing and tighten hold-down bolt.

Scheme 38

Scheme 39

Removal (Van 4Y-E)

Disconnect negative battery cable. Remove front right seat. Remove engine service hole cover. Disconnect distributor connectors. Disconnect spark plug wires. Remove distributor hold-down bolt and distributor.

Installation (Van 4Y-E)

1. Remove No. 1 spark plug. Place finger over spark plug hole and rotate crankshaft clockwise until pressure is felt at TDC. Install spark plug. Set oil pump drive slot. (Scheme 40) Align groove in housing with drill mark on drive gear. (Scheme 41)
2. Insert distributor while aligning center of hold-down flange with bolt hole on engine block. Install hold-down bolt. Reconnect spark plug wires and distributor connectors. Reconnect battery cable. Set timing.

Scheme 40

Scheme 41

FUEL INJECTORS & FUEL RAILS

Note. Always install new grommets and "O" rings when removing or replacing fuel injectors. Ensure injectors rotate smoothly in injector ports and fuel rail. If injectors DO NOT rotate smoothly, check "O" rings for proper installation. Position fuel injector connectors facing upward.

1. Disconnect negative battery cable. Disconnect cold start injector connector. Put a container or shop towel under cold start injector tube. Slowly loosen and remove 2 union bolts and 4 gaskets. Remove cold start injector pipe.
2. Disconnect vacuum sensing hose from fuel pressure regulator. Disconnect fuel injector connectors. Disconnect fuel hose from fuel return pipe. Remove fuel pressure pulsation damper and gaskets. Remove 2 bolts and fuel rail (delivery pipe) with 4 injectors. Remove 4 insulators and 2 spacers from intake manifold. Remove fuel injectors from fuel rail.

1. Install new grommets and "O" rings on injectors. Install 4 injectors of fuel rail. Install 4 insulators and 2 spacers.
2. Place injectors with fuel rail into injector ports. Ensure injectors rotate smoothly. (Scheme 42) If injectors do not rotate smoothly, check "O" rings for proper installation. Position injectors connectors upward. Install fuel rail bolts. Install fuel pressure pulsation damper. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - CAMRY & CELICA 3S-FE»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul).

Scheme 42

1. Disconnect negative battery cable. Drain coolant. Disconnect throttle cable from throttle body and bracket (A/T). Disconnect accelerator cable and bracket from throttle body and air intake chamber. Remove air cleaner cap, airflow meter and air cleaner hose.
2. Disconnect hoses for PCV, vacuum sensing and coolant by-pass. Disconnect connectors for idle speed control, throttle position sensor and EGR gas temperature sensor (California only).
3. Remove 3 bolts and top right engine mount bracket. Disconnect cold start injector connector. Put a container or shop towel under cold start injector tube. Slowly loosen and remove 2 union bolts and 4 gaskets. Remove injector pipe.
4. Disconnect hoses for brake booster, power steering vacuum and cruise control. Disconnect ground strap and wiring harness clamp. Disconnect EGR pipe. Remove engine removal hook and air intake chamber bracket. Remove 2 bolts and nuts and air intake chamber. Disconnect connectors for cold start injector, coolant temperature sensor and 6 fuel injectors.
5. Disconnect 3 wiring harness clamps from left fuel rail. Disconnect fuel return hoses from fuel pressure regulator and No. 1 fuel pipe. Disconnect fuel inlet hose from fuel filter. Remove 2 union bolts, 4 gaskets and No. 2 fuel pipe.
6. Remove 2 bolts and left fuel rail with 3 injectors. Remove 3 bolts and right fuel rail with injectors. Remove 6 injectors from fuel rails. Remove 6 insulators from intake manifold.

Scheme 43

1. Install new grommets and "O" rings on injectors. Install 6 injectors on fuel rails. Install 6 insulators and 4 spacers on intake manifold.
2. Install 3 injectors with right fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 5 fuel rail bolts.
3. Install No. 2 fuel pipe with 4 new gaskets and union bolts. (Scheme 43) Connect fuel inlet and return hoses. Connect 3 wiring harness clamps to left fuel rail. Connect connectors for 6 injectors, cold start injector and coolant temperature sensor. Install air intake chamber.
4. Install EGR pipe. Connect wiring harness with clamp. Install engine removal hook and air intake chamber bracket. Connect hoses and connectors removed in removal step 4).
5. Connect cold start injector tube and connector. Install right top engine mount bracket. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - CAMRY 2VZ-FE»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul).

REMOVAL (CELICA 3S-GE)

1. Disconnect negative battery cable. Drain coolant. Disconnect throttle cable from throttle linkage (A/T). Disconnect accelerator cable from throttle linkage. Remove suspension upper brace from firewall and strut towers.
2. Disconnect upper air cleaner hose. Remove ignitor. Remove 6 bolts and suspension lower crossmember. Disconnect throttle position sensor. Disconnect PCV hose, coolant by-pass hose, air tube hose and vacuum hoses. Remove 4 bolts and throttle body.
3. Remove 3 bolts, engine removal hook and intake manifold bracket. Disconnect cold start injector connector. Put a container or shop towel under cold start injector tube. Slowly loosen and remove 2 union bolts and 4 gaskets. Remove cold start injector pipe.
4. Remove EGR vacuum modulator. Disconnect hoses for brake booster, cruise control and A/C idle-up. Disconnect vacuum hoses as required. Disconnect injector connectors. Disconnect inlet hose from fuel filter. Disconnect fuel return hose from fuel return pipe. Remove 2 intake manifold brackets. Disconnect ground strap. Disconnect vacuum switching valve connectors and power steering vacuum hoses.
5. Remove 4 bolts and 3 nuts holding intake manifold to intake manifold. Disconnect 3 wiring harness clamps. Remove intake manifold. Remove air control valve. Remove 3 bolts and fuel rail with 4 injectors. Remove insulators and 3 spacers from intake manifold. Remove injectors from fuel rail.

INSTALLATION (CELICA 3S-GE)

1. Install new grommets and "O" rings on injectors. Install 4 injectors on fuel rails. Install 4 insulators and 3 spacers on intake manifold.
2. Install 4 injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 3 fuel rail bolts.
3. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - CELICA 3S-GE»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul) in this article.

REMOVAL (CELICA 3S-GTE)

1. Disconnect negative battery cable. Drain coolant from engine and intercooler. Disconnect accelerator cable from throttle linkage. Remove intercooler. To remove intercooler, see steps 1)-3) under «TURBOCHARGER»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul) in this section.
2. Remove 4 bolts and air connector. Remove air connector bracket. Disconnect throttle position sensor connector. Disconnect idle speed control connector. Remove coolant hoses, air hose and vacuum hoses from throttle body. Remove 4 bolts and throttle body.
3. Disconnect fuel pressure regulator vacuum hose. Disconnect fuel return hose. Loosen lock and nut and remove fuel pressure regulator. Remove EGR vacuum modulator. Disconnect injector connectors.
4. Disconnect fuel inlet hose from fuel rail. Remove 3 bolts and fuel rail with 4 fuel injectors. Remove 4 insulators and 3 spacers from intake manifold. Remove fuel injectors from fuel rail.

INSTALLATION (CELICA 3S-GTE)

1. Install new grommets and "O" rings on injectors. Install 4 injectors on fuel rails. Install 4 insulators and 3 spacers on intake manifold.
2. Install 4 injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 3 fuel rail bolts.
3. Connect fuel return hose to return pipe. Connect injector connectors. Install EGR modulator. Install fuel pressure regulator and throttle body. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - CELICA 3S-GTE»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul) .

REMOVAL (COROLLA & MR2)

1. Disconnect negative battery cable. Disconnect PCV hoses. Disconnect fuel pressure regulator vacuum and fuel return hoses. Disconnect injector connectors. Remove fuel pressure regulator from fuel rail.
2. Disconnect cold start injector connector. Put a container or shop towel under cold start injector tube. Remove cold start injector pipe. Remove 4 vacuum hoses and EGR vacuum modulator.
3. Remove union bolt and disconnect fuel inlet pipe. Remove 2 bolts and fuel rail with injectors. Remove 2 spacers and 4 insulators from intake manifold. Remove injectors from fuel rail.

INSTALLATION (COROLLA & MR2)

1. Install new grommets and "O" rings on injectors. Install 4 injectors on fuel rails. Install 4 insulators and 2 spacers on intake manifold.
2. Install 4 injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 3 fuel rail bolts. Tighten to 11 ft. lbs. (15 N.m). Connect fuel inlet pipe and tighten to 22 ft. lbs. (29 N.m).
3. To complete installation, reverse removal procedure. Tighten fuel pressure regulator bolts to 65 INCH lbs. (7.4 N.m).

REMOVAL (CRESSIDA & SUPRA)

1. Disconnect negative battery cable. Drain coolant. Disconnect idle speed control valve hoses and vacuum hoses from throttle body. Disconnect vacuum hoses from fuel pressure regulator.
2. Disconnect connectors for throttle position sensor, idle speed control valve and cold start injector. Disconnect accelerator connecting rod.
3. On 7M-GE, disconnect air cleaner hose from throttle body. Remove throttle body and air intake connector brackets. Remove 4 bolts, 2 nuts and intake connector.
4. On 7M-GTE, remove air cleaner hose. Disconnect accelerator link cable and rod. Remove throttle cable (A/T). Remove 6 hoses and idle speed control pipe. Remove PCV pipe and hoses. Remove intake air connector.
5. On 7M-GTE, disconnect 2 by-pass hoses from idle speed control valve and pipe. Remove 4 bolts and throttle body.
6. On 7M-GE, disconnect by-pass hose from idle speed control valve, remove 2 bolts and idle speed control valve.
7. On all models, disconnect injector connectors. Disconnect cold start injector tube from fuel rail. Remove union bolt (7M-GE) or pulsation damper (7M-GTE) and gaskets from fuel rail. Remove 2 fuel pipes. Loosen lock nut and remove fuel pressure regulator.
8. Remove 3 bolts and fuel rail (delivery pipe) with injectors. Remove 6 insulators and 3 spacers from intake manifold. Remove injectors from fuel rail.

INSTALLATION (CRESSIDA & SUPRA)

1. Install new grommets and "O" rings on injectors. Install injectors on fuel rails. Install 6 insulators and 3 spacers on intake manifold.
2. Install injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 3 fuel rail bolts.
3. Install fuel pressure regulator. Install front fuel pipe. Connect fuel hose. Install rear fuel pipe with vacuum switching valve and connect fuel hose.
4. Connect pipe to fuel rail with union bolt (7M-GE) or pulsation damper (7M-GTE). Connect injector connectors. Connect cold start injector tube to fuel rail. Install idle speed control valve.
5. On 7M-GTE, install throttle body.
6. On 7M-GE, install air intake connector. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - CRESSIDA & SUPRA»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul) .

1. Disconnect negative battery cable. Disconnect accelerator and throttle cables. Disconnect emission control hoses. Disconnect all hoses and electrical connectors from intake manifold area.
2. Loosen 2 union nuts and remove EGR pipe. Remove cold start injector pipe. Disconnect coolant by-pass hoses. Remove 2 intake manifold brackets. Remove 7 bolts, 2 nuts and air intake chamber. Remove intake manifold temperature sensor and bracket.
3. Disconnect engine wiring harness on intake manifold. Disconnect fuel and vacuum hoses. Remove pulsation damper. Remove No. 2 fuel pipe with engine removal hook. (Scheme 45) Remove fuel pressure regulator. Remove No. 1 fuel pipe.
4. Remove 3 nuts, plate washers, spacers and fuel rail with 6 injectors. Remove 6 insulators, 6 spacers and 3 collars from intake manifold. Remove injectors from fuel rail.

Scheme 44

Scheme 45

1. Install new grommets and "O" rings on injectors. Install 6 injectors on fuel rails. Install 6 insulators, 6 spacers and 3 collars on intake manifold.
2. Install 6 injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 3 fuel rail spacers, washers and nuts. (Scheme 44)
3. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - LAND CRUISER»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul).

REMOVAL (PICKUP & 4RUNNER 22R-E)

1. Disconnect accelerator and throttle cables. Disconnect ground strap from rear of engine. Disconnect all hoses connected to air intake chamber. Remove EGR vacuum modulator. Disconnect connectors for cold start injector, throttle position sensor and EGR temperature sensor (if equipped).
2. Remove cold start injector pipe. Remove bolts holding No. 1 EGR pipe to air intake chamber. (Scheme 46) Remove manifold bracket bolts. Remove air intake chamber with throttle body and resonator.
3. Disconnect fuel return hose and inlet pipe. Disconnect injector connectors. Remove fuel rail with injectors. Remove spacers and insulators from intake manifold. Remove injectors from fuel rail.

Scheme 46

INSTALLATION (PICKUP & 4RUNNER 22R-E)

1. Install new grommets and "O" rings on injectors. Install 4 injectors on fuel rails. Install 4 insulators and spacers on intake manifold.
2. Install 6 injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 3 fuel rail spacers, washers and nuts. (Scheme 44)
3. to complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - PICKUP & 4RUNNER 22R-E»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul).

Scheme 47

1. Disconnect negative battery cable. Drain coolant. Disconnect throttle position sensor connector. Disconnect canister vacuum hose from throttle body. Disconnect vacuum and fuel hoses from fuel pressure regulator. (Scheme 47) Disconnect PCV hose from union.
2. Disconnect water by-pass hose. Disconnect cold start injector connector and tube. Disconnect vacuum hose from gas filter. Disconnect EGR gas temperature sensor connector. Disconnect EGR vacuum hoses. Disconnect air hose from reed valve.
3. Remove 6 bolts, 2 nuts and air intake chamber. Disconnect electrical connectors as required. Disconnect vacuum hose from bi-metallic vacuum switching valve. Remove 4 union bolts and 2 fuel pipes. Remove 4 nuts and fuel rails with injectors. Remove injectors from fuel rails.

1. Install new grommets and "O" rings on injectors. Install 6 injectors on fuel rails. Install spacers and insulators. Install injectors on fuel rails.
2. Install injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check "O" rings for proper installation. Position injector connectors upward. Install 4 fuel rail nuts.
3. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - PICKUP & 4RUNNER 3VZ-E»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul) .

Scheme 48

1. Disconnect negative battery cable. Drain coolant. Disconnect accelerator and throttle linkage. Remove air cleaner hose. Disconnect cold start injector and air valve connectors. Disconnect hoses for PCV, brake booster, charcoal canister and emission control.
2. Remove EGR valve. (Scheme 48) Disconnect cold start injector pipe. Disconnect coolant by-pass hose. Disconnect fuel pressure regulator hose.
3. Remove air intake chamber brackets. Use a 12 mm socket wrench to remove rear air intake chamber bracket. Remove air intake chamber with air valve. Use 10 mm and 12 mm socket wrenches to remove air chamber with air valve.
4. Disconnect fuel injector connectors. Remove exhaust manifold and heater pipe brackets. Remove pulsation damper. Disconnect fuel inlet pipe. Disconnect fuel outlet pipe.
5. Disconnect fuel inlet and outlet pipes from fuel rail. Remove bolts and remove fuel rail with injectors. Remove injectors from fuel rail.

1. Install new grommets and "O" rings on injectors. Install 4 injectors on fuel rail. Install 4 insulators and 2 spacers on intake manifold.
2. Install 4 injectors with fuel rail into intake manifold. Ensure injectors rotate smoothly. If injectors do not rotate smoothly, check upward. Install 3 fuel rail bolts. Tighten to 13 ft. lbs. (18N.m).
3. To complete installation, reverse removal procedure. See «TORQUE SPECIFICATIONS TABLE - VAN»(/toyota/supra/a70-1986-1993/remont/removal-installation/#removeinstalloverhaul) .

OXYGEN & SUB-OXYGEN SENSORS

Note. Tightening specification for oxygen and sub-oxygen sensors are not available from manufacturer.

REMOVAL (ALL MODELS)

Disconnect oxygen or sub-oxygen sensor electrical connector. Remove 2 mounting nuts or bolts. Remove sensor. Some sub-oxygen sensors screw into exhaust manifold or header pipe.

INSTALLATION (ALL MODELS)

Install sensor. Install nuts or bolts. Connect electrical connector. Tightening specification not available from manufacturer.

Scheme 49

REMOVAL & INSTALLATION (CAMRY & CELICA 3S-FE & 3S-GE

1. Drain coolant from throttle body. Disconnect throttle and accelerator cables from throttle linkage. Disconnect air cleaner hose.
2. Unplug throttle position sensor connector. Disconnect idle speed control valve connector (3S-FE). Disconnect PCV valve hose, coolant by-pass hose and air tube hose. Disconnect emission control vacuum hoses and mark for installation. Remove throttle body.
3. To install, reverse removal procedure. Tighten throttle body mounting bolts to 14 ft. lbs. (19 N.m).

REMOVAL & INSTALLATION (CAMRY 2VZ-FE)

1. Drain coolant from throttle body. Disconnect throttle and accelerator cables from throttle linkage. Disconnect air cleaner cap, airflow meter and air cleaner hose.
2. Unplug throttle position sensor. Disconnect PCV valve hose. Disconnect coolant by-pass hose. Label and disconnect emission control vacuum hoses. Disconnect throttle cable bracket. Remove mounting bolts and throttle body.
3. To install, reverse removal procedure. Tighten throttle body mounting bolts to 108 INCH lbs. (12 N.m).

REMOVAL & INSTALLATION (CELICA 3S-GTE)

1. Drain coolant from throttle body. Drain and remove intercooler. Disconnect accelerator cable from throttle linkage. Remove air connector and air connector bracket. Unplug throttle position sensor and idle speed control valve connectors.
2. Disconnect coolant by-pass hose and air hose. Label and disconnect emission control vacuum hoses. Remove throttle body. To install, reverse removal procedure. Tighten throttle body mounting bolts to 14 ft. lbs. (19 N.m).

REMOVAL & INSTALLATION (COROLLA & MR2)

1. Drain coolant from throttle body. Disconnect accelerator cable from throttle linkage. Remove cable bracket from throttle body (4A-FE).
2. Remove air cleaner hose. Unplug throttle position sensor. Disconnect coolant by-pass hose(s) and PCV hose. Label and disconnect emission control vacuum hoses. Remove throttle body. To install, reverse removal procedure. Tighten throttle body mounting bolts and nuts to 16 ft. lbs. (22 N.m).

REMOVAL & INSTALLATION (CRESSIDA & SUPRA)

1. Drain coolant from throttle body. Disconnect accelerator connecting rod. Remove air intake connector (7M-GTE). Label and disconnect emission control vacuum hoses.
2. Disconnect coolant by-pass hose(s). Unplug throttle position sensor. Remove air cleaner hose. Remove throttle body bracket (7M-GE). Remove throttle body. To install, reverse removal procedure. Tighten throttle body mounting bolts to 108 INCH lbs. (12 N.m).

REMOVAL & INSTALLATION (LAND CRUISER)

Drain coolant from throttle body. Disconnect accelerator an throttle cables from throttle linkage. Disconnect air cleaner hose. Unplug throttle position sensor. Disconnect coolant by-pass hoses(s). Label and disconnect emission control vacuum hoses. Remove throttle body. To install, reverse removal procedure. Tighten throttle body mounting bolts and nut to 108 INCH lbs. (12 N.m).

REMOVAL & INSTALLATION (PICKUP & 4RUNNER 22R-E)

1. Drain coolant from throttle body. Remove intake air connector. Disconnect accelerator cable from throttle linkage. Disconnect A/C idle-up hose, PCV hose and coolant by-pass hose(s).
2. Label and disconnect emission control vacuum hoses. Unplug throttle position sensor. Remove throttle body. To install, reverse removal procedure. Tightening specification for throttle body mounting bolt is not available from manufacturer.

REMOVAL & INSTALLATION (PICKUP & 4RUNNER 3VZ-3)

Drain coolant from throttle body. Disconnect air cleaner hose. Unplug throttle position sensor. Label and disconnect emission control vacuum hoses. Disconnect accelerator and throttle cables from throttle linkage. Disconnect coolant by-pass hoses. Remove throttle body. To install, reverse removal procedure. Tighten throttle body mounting bolts to 13 ft. lbs. (18 N.m).

REMOVAL & INSTALLATION (VAN)

Disconnect negative battery cable. Drain coolant from throttle body. Disconnect accelerator and throttle cables from throttle linkage. Disconnect air cleaner hose. Unplug throttle position sensor. Disconnect coolant by-pass hoses. Label and disconnect emission control vacuum hoses. Remove throttle body. To install, reverse removal procedure. Tighten throttle body mounting nuts to 108 INCH lbs. (12 N.m).

REMOVAL (CELICA)

1. Disconnect negative battery cable. Drain coolant. Remove air cleaner. Remove right front wheel. Lower engine covers and suspension lower crossmember for access to catalytic converter. Remote front exhaust pipe and catalytic converter. Remove O2 sensor.
2. Remove intercooler radiator hoses, intercooler reservoir hose and intercooler coolant leaves warning sensor connector. Remove intercooler and hoses.
3. Remove alternator duct and bracket. Remove dipstick. Remove turbocharger heat insulator and turbine outlet elbow. Remove turbocharger-to-block bracket. Remove 2 oil pipe connecting bolts. Remove turbocharger.

Scheme 50

INSPECTION (CELICA)

Note. Check for oil sludge in oil pipes. Replace if necessary.

Turbine Wheel Rotation

Ensure turbine wheel turns smoothly. If impeller wheel will not turn or drags when turned, replace turbocharger assembly.

Shaft Axial Play

Place dial indicator on shaft end. Axial (forward-and-backward) shaft play should be.0051" (.13 mm) or less. If not, replace turbocharger.

Shaft Radial Play

Insert dial indicator into oil outlet hole through hole in spacer bearing. Set dial indicator against center of turbine shaft. Radial (up-and-down) play should be.0071" (.18 mm) or less. If not, replace turbocharger.

INSTALLATION (CELICA)

To install, reverse removal procedure. Use new gaskets and "O" rings. See TORQUE SPECIFICATIONS TABLE - CELICA TURBOCHARGER . After installing turbocharger, pour about 1.2 cu. in. of new oil into oil inlet. Turn impeller wheel by hand to circulate oil onto bearings. Fill cooling system and intercooler with coolant.

REMOVAL (SUPRA)

1. Disconnect negative battery cable. Drain cooling system. Remove hoses from air cleaner with airflow meter and air cleaner cap. Disconnect O2 oxygen sensor. Remove turbo heat insulator.
2. Remove dipstick, dipstick guide and bolt. Remove remaining air cleaner hose clamps, air cleaner pipe mounting bolt and air cleaner pipe. Disconnect exhaust pipe from exhaust manifold. Remove gasket. Remove turbo oil pipe mounting nuts and union bolt.
3. Remove 2 turbo brackets. Disconnect turbo water hose from water outlet housing. Disconnect union pipe. Remove 4 mounting nuts, turbocharger and gasket. With turbo on bench, remove second water pipe nuts, water pipe and gasket. With turbo on bench, remove second water pipe nuts, water pipe and gasket. Remove turbo oil pipe and gasket. Remove turbine outlet elbow and gasket.

Scheme 51

INSPECTION (SUPRA)

Inspection procedure is the same as for Celica Turbo.

INSTALLATION (SUPRA)

To install, reverse removal procedure. See TORQUE SPECIFICATIONS TABLE - SUPRA TURBOCHARGER . Use new gaskets and "O" rings. After replacing turbocharger, pour about 1.2 cu. in. of new oil into oil inlet. Turn impeller wheel by hand to circulate oil onto bearings. Fill system with coolant. When installing turbocharger mounting gasket, ensure protrusion gasket faces rearward.

CAMRY & CELICA 3S-FE

TORQUE SPECIFICATIONS - CAMRY & CELICA 3S-FE

CAMRY 2VZ-FE

TORQUE SPECIFICATIONS - CAMRY 2VZ-FE

CELICA 3S-GE

TORQUE SPECIFICATIONS - CELICA 3S-GE

CELICA 3S-GTE

TORQUE SPECIFICATIONS - CELICA 3S-GTE

CRESSIDA & SUPRA

TORQUE SPECIFICATIONS - CRESSIDA & SUPRA

LAND CRUISER

TORQUE SPECIFICATIONS - LAND CRUISER

PICKUP & 4RUNNER 22R-E

TORQUE SPECIFICATIONS - PICKUP & 4RUNNER 22R-E (1)

PICKUP & 4RUNNER 3VZ-E

TORQUE SPECIFICATIONS - PICKUP & 4RUNNER 3VZ-E

VAN

TORQUE SPECIFICATIONS - VAN

CELICA TURBOCHARGER

TORQUE SPECIFICATIONS - CELICA TURBOCHARGER

SUPRA TURBOCHARGER

TORQUE SPECIFICATIONS - SUPRA TURBOCHARGER

See also:
• TORQUE SPECIFICATIONS TABLE - CAMRY & CELICA 3S-FE