Engine Mechanical (2.4L): Other Mitsubishi Eclipse IV рестайлинг

DRIVE BELT TENSION CHECK

Scheme 117

1. Make sure that the indicator mark is within the area marked with A in the illustration.
2. If the mark is out of the area, replace the «DRIVE BELT»(ref-308265-S40057258742009020200000) . NOTE: The drive belt tension adjustment is not necessary, as the engine is equipped with an auto-tensioner.

Scheme 118

1. Turn OFF the engine, then check to see that the drive belt is not protruding from the pulley width of the auto-tensioner.
2. Remove the «DRIVE BELT»(ref-308265-S40057258742009020200000) .
3. Securely insert the spindle handle or ratchet handle at a 12.7 mm (1/2-inch) angle into the jig hole of the auto tensioner. Turn the auto-tensioner to the left and right to check and see that there is no binding.
4. If there are any problems in the procedure 1 or 3, replace the «AUTO-TENSIONER»(ref-308265-S39372733902009020200000) .
5. Install the «DRIVE BELT»(ref-308265-S40057258742009020200000) .

FUNCTION CHECK

You can verify if the auto-tensioner is defective or not by checking the drive belt tension.

When using scan tool MB991958

Required Special Tools

1. MB991668: Belt Tension Meter Set
2. MB991958: Scan Tool (MUT-III Sub Assembly) MB991824: V.C.I. MB991910: MUT-III Main Harness A

Scheme 119

1. Check the «DRIVE BELT TENSION»(ref-308265-S12645606092009020200000) .
2. Measure the drive belt tension vibration frequency by the following procedures: CAUTION: To prevent damage to scan tool MB991824, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991824. Connect special tool MB991668 to scan tool MB991824. Connect scan tool MB991910 to scan tool MB991824. Connect scan tool MB991910 to the data link connector. Turn the ignition switch to the "ON" position and select "Belt Tension" from the scan tool menu. CAUTION: The temperature of the surface of the belt should be as close to normal operating temperature as possible. Do not allow any contaminants such as water or oil to get onto the microphone. If strong gusts of wind blow against the microphone or if there are any loud sources of noise nearby, the values measured by the microphone may not correspond to actual values. If the microphone is touching the belt while the measurement is being made, the values measured by the microphone may not correspond to actual values. Do not take the measurement while the vehicle's engine is running. Hold special tool MB991668 to the middle of the drive belt between the pulleys (at the place indicated by arrow), approximately 10 - 20 mm (0.40 - 0.78 inch) away from the rear surface of the belt so that it is perpendicular to the belt (within +/- 15 degrees). Gently tap the middle of the belt between the pulleys (the place indicated by the arrow) with your finger as shown in the illustration, and measure that the vibration frequency of the belt is within the standard value. Standard value: 120 - 154 Hz
3. If not within the standard value, replace the «AUTO-TENSIONER»(ref-308265-S39372733902009020200000) .

When using a tension gauge

Scheme 120

Scheme 121

1. Check the «DRIVE BELT TENSION»(ref-308265-S12645606092009020200000) .
2. Use a belt tension gauge in the middle of the belt between the pulleys (at the place indicated by the arrow) to measure that the belt tension is within the standard value. Standard value: 340 - 562 N
3. If not within the standard value, replace the «AUTO-TENSIONER»(ref-308265-S39372733902009020200000) .

Scheme 122

1. Before checks, check that the engine oil, starter and battery are normal. Also, set the vehicle in the following condition: Engine coolant temperature: 80 - 95°C (176 - 203°F) Lights and all accessories: OFF Transaxle: Neutral (P range on vehicles with A/T) NOTE: On vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" position but this is no problem for checks and adjustment.
2. Remove all of the ignition coils.
3. Remove the rocker cover.
4. Turn the crankshaft clockwise until the notch on the pulley is lined up with the "T" mark on the timing indicator.
5. Move the rocker arms on the No. 1 and No. 4 cylinders up and down by hand to determine which cylinder has its piston at the top dead center on the compression stroke. If both intake and exhaust valve rocker arms have a valve lash, the piston in the cylinder corresponding to these rocker arms is at the top dead center on the compression stroke.
6. Valve clearance inspection and adjustment can be performed on rocker arms indicated by white arrow mark when the No.1 cylinder piston is at the top dead center on the compression stroke, and on rocker arms indicated by black arrow mark when the No.4 cylinder piston is at the top dead center on the compression stroke.
7. Measure the valve clearance. If the valve clearance is not as specified, loosen the rocker arm lock nut and adjust the clearance using a thickness gauge while turning the adjusting screw. Standard value (hot engine): Intake side: 0.20 mm (0.008 inch) Exhaust side: 0.30 mm (0.012 inch)
8. While holding the adjusting screw with a screwdriver to prevent it from turning, tighten the lock nut to the specified torque. Tightening torque: 9 +/- 1 N.m (80 +/- 9 in-lb)
9. Turn the crankshaft 360 degrees to line up the notch on the crankshaft pulley with the "T" mark on the timing indicator.
10. Repeat steps ( 7 ) and ( 8 ) on other valves for clearance adjustment.
11. Install the rocker cover.
12. Install the ignition coils.

Scheme 123

Scheme 124

Scheme 125

1. Remove all of the ignition coils.
2. Remove the rocker cover.
3. Remove the engine oil control valve.
4. Remove the engine oil pressure switch.
5. Turn the crankshaft clockwise until the notch on the crankshaft pulley is lined up with "T" mark on the lower cover of timing belt.
6. Move the rocker arms on the No.1 and No.4 cylinders up and down by hand to determine which cylinder has its piston at the top dead center on the compression stroke. NOTE: The rocker arm piston operation check can be performed on rocker arms indicated by white arrow mark when the No.1 cylinder piston is at the top dead center on the compression stroke, and on rocker arms indicated by black arrow mark when the No.4 cylinder piston is at the top dead center on the compression stroke.
7. While shutting up the oil passage hole at the depth of the engine oil control valve's installation hole by finger not to leak air, blow compressed air into the engine oil pressure switch's installation hole by air blow gun. At this time, confirm that the rocker arm piston can operate. NOTE: To fully confirm the check, prevent the compression air from leaking as much as possible by installing the O-ring to the end of air blow gun.
8. Turn the crankshaft clockwise until the notch on the crankshaft pulley is lined up with the "T" mark on the lower cover of timing belt.
9. Confirm the rest of the rocker arm pistons under the procedure 7.
10. When the rocker arm piston does not operate, replace the rocker arm assembly.
11. Install the engine oil pressure switch and the engine oil control valve (Refer to «CAMSHAFT AND VALVE STEM SEAL - REMOVAL AND INSTALLATION»(ref-308265-S09403209522009020200000) ).
12. Install the rocker cover.
13. Install all of the ignition coils.

IGNITION TIMING CHECK

Required Special Tool

MB991958: Scan Tool (MUT-III Sub Assembly)

1. MB991824: V.C.I.
2. MB991827: MUT-III USB Cable
3. MB991910: MUT-III Main Harness A

Scheme 126

1. Before inspection, set the vehicle in the following condition: Engine coolant temperature: 80 - 95°C (176 - 203°F) Lights and all accessories: OFF Transaxle: Neutral (P range on vehicles with A/T) NOTE: On vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" position but this is no problem for checks. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Set the timing light to the power supply line (terminal No. 1) of the ignition coil No. 2. NOTE: The power supply line is looped and also longer than the other ones.
4. Start the engine and run it at idle.
5. Check that the idle speed is approximately 700 r/min.
6. Select scan tool MB991958 actuator test "item number 4".
7. Check that basic ignition timing is within the standard value. Standard value: 5° BTDC +/- 3°
8. If the basic ignition timing is not within the standard value, check the following items: Diagnostic output Timing belt cover and crankshaft position sensor installation conditions Crankshaft sensing blade condition CAUTION: If the actuator test is not canceled, the forced drive will continue for 27 minutes. Driving in this state could lead to engine failure.
9. Press the clear key on scan tool MB991958 (select forced drive stop mode), and cancel the actuator test.
10. Check that the actual ignition timing is at the standard value. Standard value: Approximately 10° BTDC NOTE: Ignition timing fluctuates about +/- 7° Before Top Dead Center, even under normal operating condition. NOTE: It is automatically further advanced by about 5° to 10° Before Top Dead Center at higher altitudes.

IDLE SPEED CHECK

Required Special Tool

MB991958: Scan Tool (MUT-III Sub Assembly)

1. MB991824: V.C.I.
2. MB991827: MUT-III USB Cable
3. MB991910: MUT-III Main Harness A

Scheme 127

1. Before inspection, set the vehicle in the following condition. Engine coolant temperature: 80 - 95°C (176 - 203°F) Lights and all accessories: OFF Transaxle: Neutral (P range on vehicles with A/T) NOTE: On vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" position but this is no problem for checks. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Check the basic ignition timing. Standard value: 5° BTDC +/- 3°
4. Start the engine.
5. Run the engine at idle for 2 minutes.
6. Check the idle speed. Select item number 2 and take a reading of the idle speed. Curb idle speed: 700 +/- 100 r/min NOTE: The idle speed is controlled automatically by the idle air control system.
7. If the idle speed is outside the standard value, refer to «SYMPTOM CHART»(ref-308261-S13112943742009020200000) .

IDLE MIXTURE CHECK

Required Special Tool

MB991958: Scan Tool (MUT-III Sub Assembly)

1. MB991824: V.C.I.
2. MB991827: MUT-III USB Cable
3. MB991910: MUT-III Main Harness A

Scheme 128

1. Before inspection, set the vehicle in the following condition: Engine coolant temperature: 80 - 95°C (176 - 203°F) Lights and all accessories: OFF Transaxle: Neutral (P range on vehicles with A/T) NOTE: On vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" position but this is no problem for checks. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Check that the basic ignition timing is within the standard value. Standard value: 5° BTDC +/- 3°
4. Start the engine and increase the engine speed to 2,500 r/min for 2 minutes.
5. Set the CO, HC tester.
6. Check the CO contents and the HC contents at idle. Standard value: CO contents: 0.5 % or less HC contents: 100 ppm or less
7. If the CO and HC contents do not remain inside the standard value, check the following items: NOTE: Replace the catalytic converter when the CO and HC contents do not remain inside the standard value, even though the result of the inspection is normal for all items. Diagnostic output Closed-loop control (When the closed-loop control is carried out normally, the output signal of the heated oxygen sensor changes between 0 - 400 mV and 600 - 1,000 mV at idle.) Fuel pressures Injector Ignition coil, spark plug EGR system Evaporative emission system Compression pressure

COMPRESSION PRESSURE CHECK

Required Special Tool

MB991958: Scan Tool (MUT-III Sub Assembly)

1. MB991824: V.C.I.
2. MB991827: MUT-III USB Cable
3. MB991910: MUT-III Main Harness A

Scheme 129

Scheme 130

Scheme 131

1. Before inspection, check that the engine oil, starter and battery are normal. Also, set the vehicle in the following condition: Engine coolant temperature: 80 - 95°C (176 - 203°F) Lights and all accessories: OFF Transaxle: Neutral (P range on vehicles with A/T) NOTE: On vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" position but this is no problem for checks.
2. Remove all of the ignition coils and spark plugs.
3. Disconnect the crankshaft position sensor connector. NOTE: Doing this will prevent the engine control module from carrying out ignition and fuel injection. WARNING: Keep your distance from the spark plug hole when cranking. Oil, fuel, etc., may spray out from the spark plug hole and may cause serious injury.
4. Cover the spark plug hole with a shop towel etc., during cranking. After the engine has been cranked, check for foreign material adhering to the shop towel.
5. Set a compression gauge to one of the spark plug holes.
6. Crank the engine with the throttle valve fully open and measure the compression pressure. Standard value (at engine speed of 200 r/min): 1,560 kPa (226 psi) Minimum limit (at engine speed of 200 r/min): 1,130 kPa (164 psi)
7. Measure the compression pressure for all the cylinders, and check that the pressure differences of the cylinders are below the limit. Limit: 98 kPa (14 psi)
8. If there is a cylinder with compression or a compression difference that is outside the limit, pour a small amount of engine oil through the spark plug hole, and repeat the operations in steps 6 to 8. If the compression increases after oil is added, the cause of the malfunction is a worn or damaged piston ring and/or cylinder inner surface. If the compression does not rise after oil is added, the cause is a burnt or defective valve seat, or pressure is leaking from the gasket.
9. Connect the crankshaft position sensor connector.
10. Install the spark plugs and ignition coils.
11. Use the scan tool MB991958 to erase the diagnostic trouble codes. NOTE: This will erase the diagnostic trouble code resulting from the crankshaft position sensor connector being disconnected.

Scheme 132

1. Start the engine and allow it to warm up until the temperature of the engine coolant reaches 80 - 95°C (176 - 203°F).
2. Connect an engine tachometer.
3. Disconnect the ventilation hose from the positive crankcase ventilation (PCV) valve, and connect a vacuum gauge to the ventilation hose.
4. Plug the PCV valve.
5. Start the engine and check that idle speed is within specification. Then check the vacuum gauge reading. Idle speed: 700 +/- 100 r/min Minimum limit: 60 kPa (18 in Hg)

Scheme 133

Scheme 134

Required Special Tools

1. MB991454: Engine Hanger Balancer
2. MB991527: Hanger
3. MB991895: Engine Hanger
4. MB991928: Engine Hanger

<< D >> FUEL HIGH-PRESSURE HOSE CONNECTION

Apply a small amount of engine oil to the fuel line pipe and then install the fuel high-pressure hose.

Scheme 135

Scheme 136

<< E >> BRAKE BOOSTER VACUUM HOSE CONNECTION

Insert vacuum hose with its paint mark facing upward.

Scheme 137

Scheme 138

<< B >> RADIATOR UPPER HOSE DISCONNECTION

Make mating marks on the radiator upper hose and the hose clamp. Disconnect the radiator upper hose.

Scheme 139

Scheme 140

Scheme 141

1. Remove the fuel high-pressure hose stopper.
2. Pull up the retainer and remove the fuel high-pressure hose in the direction shown. NOTE: If the retainer is released, install it after removing the fuel high-pressure hose.

>> C << FUEL HIGH-PRESSURE HOSE CONNECTION

Apply a small amount of engine oil to the fuel line pipe and then install the fuel high-pressure hose.

Scheme 142

Scheme 143

Scheme 144

1. Insert radiator upper hose until it contacts the projection on the water outlet fitting.
2. Align the mating marks on the radiator upper hose and hose clamp, and then secure the radiator upper hose.

Scheme 145

1. Hold the camshaft sprocket with special tools MB990767 and MD998719 in the same manner as removal.
2. Tighten the camshaft sprocket mounting bolt to the specified torque. Tightening torque: 89 +/- 9 N.m (65 +/- 7 ft-lb)

>> F << BRAKE BOOSTER VACUUM HOSE CONNECTION

Insert the vacuum hose with its paint mark facing upward.

Scheme 146

Scheme 147

Scheme 148

Required Special Tools

1. MB991367: Special Spanner
2. MB991385: Pin
3. MD998738: Adjusting Bolt
4. MD998767: Tensioner Wrench

BALANCER TIMING BELT TENSION CHECK

Check the balancer timing belt tension in the following procedures.

Scheme 149

1. Apply a pressure of approximately 100 N (22 pounds) at the center (arrow area) between the sprocket as shown in illustration, then inspect whether the flexure is within the standard value. Standard value: 5 - 10 mm (0.20 - 0.39 inch)
2. If not within the standard value, adjust the «BELT TENSION»(ref-308265-S07024888332009020200000) .

SEALANTS AND ADHESIVES

SEALANTS SPECIFICATION CHART