6.2l v8 Diesel - Vins [c,j] GMC Vandura I

ENGINE IDENTIFICATION

Note. For engine repair procedures not covered in this article, see ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article in the GENERAL INFORMATION section.

Engine code letter is suffix of Engine Identification Number. Number is on a label on rear of left valve cover.

ENGINE IDENTIFICATION CODES

Van

1. Disconnect batteries. Remove headlight bezels, grille, bumper and lower grill valance. Remove washer jar, upper fan shroud and tie bar, and engine cover. If equipped with A/C, discharge system, disconnect condenser lines and remove condenser.
2. Disconnect low coolant wire. Drain cooling system. Disconnect engine and transmission oil cooler lines, and upper and lower radiator hoses at radiator. Remove radiator and fan assembly. Scribe or paint a mark on front cover and injection pump flange and remove fuel injection pump.
3. Raise vehicle. Disconnect exhaust pipe at manifold. Remove inspection cover, flex plate-to-torque converter bolts, and motor mount through bolts. Disconnect block heater at element and ground wire-to-block. Remove clutch/torque converter housing-to-engine bolts. Remove starter.
4. Lower vehicle. If equipped with cruise control, remove transducer. If equipped with A/C, remove rear brace, disconnect lines at compressor, and remove brackets and compressor. If equipped with power steering, remove pump and position aside. Remove oil fill tube upper bracket and glow plug relay.
5. Disconnect oil pressure sender and loom. Remove air cleaner resonator and bracket. Remove transmission fill tube nut. Disconnect heater, radiator and by-pass hoses at crossover. Remove alternator upper bracket and coolant crossover. Disconnect fuel lines at fuel pump. Install lifting device. Remove engine.

Except Van Models

1. Disconnect batteries. Raise vehicle. Remove transmission dust cover. Disconnect torque converter and exhaust pipe. Remove starter bolts, disconnect wires and remove starter. Remove clutch/- torque converter housing bolts and left and right motor mount bolts.
2. Disconnect block heaters. Remove wire harness, trans- mission cooler lines and front battery cable clamp at oil pan. Disconnect fuel return and oil cooler lines at engine. Remove lower fan shroud bolts. Lower vehicle. Remove hood and drain cooling system.
3. Remove air cleaner with resonator and primary filter from cowl. Disconnect ground cable at alternator bracket, alternator wires and clips. Disconnect TPS, EGR-EPR and fuel cutoff at injection pump. Remove harness from clips at rocker covers and disconnect glow plugs.
4. Disconnect EGR-EPR solenoids, glow plug controller, temperature sender and move harness aside. Disconnect left side ground strap. Remove fan, upper radiator hoses at engine, and fan shroud. Remove power steering pump and belt. Remove power steering reservoir and position aside.
5. Disconnect vacuum at cruise servo and accelerator cable at injection pump. Disconnect heater hose and lower radiator hose at engine. Disconnect oil cooler lines, heater hose and overflow at radiator.
6. Disconnect automatic transmission cooler lines. Remove upper radiator cover, radiator and detent cable. Support transmission and remove engine.

Removal (Pickup)

1. Disconnect batteries. Remove air cleaner. Disconnect PCV hoses and secondary fuel filter lines. Remove secondary fuel filter and adapter.
2. Loosen vacuum pump hold down clamp and rotate pump to gain access to intake manifold bolt. Remove EPR/EGR valve bracket and A/C bracket, if equipped. Remove intake manifold bolts and injection pipe clips. Remove intake manifold from engine.

Installation

1. Clean all gasket surfaces. Install new manifold gasket making sure to open EGR passage in gasket if vehicle is equipped with EGR. Install intake manifold and tighten bolts in proper sequence.
2. Fill secondary fuel filter with clean fuel prior to installing filter. Reconnect fuel filter lines. Reverse remainder of removal procedure to complete installation.

Removal (Van)

1. Disconnect batteries. Remove engine cover and air cleaner. Disconnect necessary wires and hoses and remove EGR/EPR switches. Remove crankcase depression regulator valve and disconnect hoses to valve.
2. Remove crankcase depression regulator valve hoses from intake manifold. Remove rear A/C compressor bracket, if equipped. Remove fuel filter-to-intake manifold bracket.
3. Remove vacuum pump. Place a rag or cover over hole to prevent foreign material from entering engine. Remove intake bolts and fuel line clips. Remove intake manifold.

1. Clean all gasket surfaces. Install new manifold gasket making sure to open EGR passage in gasket if vehicle is equipped with EGR. Install intake manifold and tighten bolts in proper sequence.
2. Reconnect fuel filter lines. Reverse remainder of removal procedure to complete installation.

Scheme 1

Removal (Pickup - Right Side)

Disconnect batteries. Raise vehicle. Disconnect exhaust pipe from manifold flange. Lower vehicle. Disconnect glow plug wires. Remove air cleaner duct bracket. Remove glow plugs. Remove manifold bolts. Remove manifold.

Removal (Pickup - Left Side)

Disconnect batteries. Remove dipstick tube nut and tube. Disconnect glow plug wires and remove glow plugs. Remove manifold bolts. Raise vehicle. Disconnect exhaust pipe from manifold flange. Remove manifold from bottom.

Removal (Van - Right Side)

Disconnect batteries. Raise vehicle. Disconnect exhaust pipe from manifold flange. Lower vehicle. Disconnect glow plug wires. Remove manifold bolts. Remove manifold.

Removal (Van - Left Side)

Disconnect upper battery. Raise vehicle. Disconnect glow plug wires. Lower vehicle. Disconnect exhaust from manifold flange. Remove manifold bolts. Remove manifold.

Installation (All Models)

To install, reverse removal procedures.

1. Remove intake manifold. Remove injection line clips from brackets. Disconnect injection lines from injector nozzles and cover nozzles. Remove injection lines at pump and mark for reassembly reference.
2. Remove fuel supply line from injection pump. Remove wiring harness and bracket from engine. Remove valve cover. Drain coolant. Remove dipstick tube. Disconnect ground wire from cowl at right side of engine.
3. Raise vehicle. Disconnect exhaust pipe from manifold. Lower vehicle. If equipped, remove A/C compressor from engine without disconnecting refrigerant lines and lay it on left side of engine compartment.
4. Remove alternator from engine and lay it on right side of engine compartment. Disconnect glow plug wires. Remove rocker arm assemblies and push rods making sure to note their positions to allow installation in the same location.
5. Disconnect radiator, heater and by-pass hoses. Disconnect ground strap. Remove thermostat crossover housing from cylinder head. Remove cylinder head bolts and cylinder head.

1. Reverse removal procedure to install cylinder heads and note the following: Left rear cylinder head bolt must be installed in cylinder head prior to placing cylinder head on engine.
2. Ensure that gasket surfaces on head and cylinder block are clean and that cylinder head bolt threads and threads in block are clean. Gasket requires no sealer. Coat cylinder head bolt threads with sealer. Tighten cylinder head bolts gradually in sequence using 3 steps (Scheme 2) See «TORQUE SPECIFICATIONS»(/gmc/vandura/i-1970-1996/remont/mechanical/#62l-v8-diesel-vins-cj__torque-specifications). Push rods must be installed with the painted end up.

Scheme 2

1. Remove intake manifold. Install protective covers. Remove injection line clips from brackets. Raise vehicle. Disconnect injection lines from injector nozzles and cover nozzles.
2. Lower vehicle. Remove injection lines at pump and tag lines for reinstallation. If equipped with cruise control, remove transducer. If A/C equipped, remove upper fan shroud and A/C belt.
3. Raise vehicle. Disconnect exhaust pipes from manifolds. Remove left exhaust manifold. Remove power steering lower adjusting bolts.
4. Disconnect glow plug wires and temperature switch. If A/C equipped, remove rear A/C brace from exhaust manifold. Disconnect glow plug wires.
5. Lower vehicle. If A/C equipped, discharge A/C system, disconnect A/C lines at compressor and remove compressor from brackets and remove compressor. Remove upper power steering attachment and move aside.
6. Loosen dipstick tube front bracket and remove from stud. Remove oil fill tube upper bracket. Disconnect T.V. cable. Remove glow plug controller and bracket. Remove glow plug relay.
7. Disconnect oil pressure switch and loom. Remove loom bracket and vacuum line clip bolt at head. Remove rocker cover bolts. Disconnect fuel return line bracket. Remove rocker cover.
8. Remove rocker arm assemblies and push rods making sure to note their positions to allow installation in the same location. Drain cooling system.
9. Remove air cleaner resonator and bracket. Remove transmission fill tube nut and position aside. Disconnect heater, radiator and by-pass hoses at crossover.
10. Remove alternator upper bracket, coolant crossover and cylinder head bolts. Disconnect transmission dipstick at rear of right head and remove tube. Remove cylinder head.

1. Reverse removal procedure to install cylinder heads and note the following: Left rear cylinder head bolt must be installed in cylinder head prior to placing cylinder head on engine.
2. Ensure that gasket surfaces on head and cylinder block are clean and that cylinder head bolt threads and threads in block are clean. Gasket requires no sealer. Coat cylinder head bolt threads with sealer. Tighten cylinder head bolts gradually in sequence. Push rods must be installed with the painted end up.

Removal

1. Disconnect batteries. Remove fan and fan shroud. Drain radiator. If A/C equipped, remove A/C hose bracket nuts. Remove oil fill tube.
2. Remove alternator pivot bolt, belt and lower bracket. Remove power steering belt. Remove power steering pump and position aside.
3. Remove A/C belt, if equipped. Disconnect by-pass hose and lower radiator hose. Remove water pump bolts, plate and pump.

Apply anaerobic seal to sealing surface of plate so that sealer is wet to touch when bolts are tightened. Reverse removal procedure to complete installation.

Note. For further information on cooling system capacities and other cooling system components, see ENGINE COOLING SYSTEMS article.

Valve Arrangement

1. I-E-I-E-I-E-I-E (Left bank, front to rear)
2. E-I-E-I-E-I-E-I (Right bank, front to rear)

Removal & Installation

Remove valve covers. Loosen rocker arm shaft bolts gradually and evenly to release valve spring pressure. Remove bolts and rocker arm shafts. To install, reverse removal procedure.

Scheme 3

With cylinder head removed, compress valve spring and remove valve keepers. Release spring compressor and remove retainer, spring, damper, seal and exhaust valve rotators.

To install valve springs, reverse removal procedure. Lubricate and install valve stem oil seal on valve stem before installing remaining components.

VALVE SPRING INSTALLED HEIGHT

Valve spring installed height is measured from top of shim at bottom of spring, or spring seat to top of valve spring. If distance exceeds specified height, install a 1/16" (1.5875 mm) thick shim. Installed height should never be more than 1/16" (1.5875 mm) less than specified height.

VALVE SPRING INSTALLED HEIGHT SPECIFICATIONS

VALVE STEM OIL SEALS

An "O" ring type oil seal is installed on valve stem before valve spring is installed. See Valve Springs.

VALVE GUIDE SERVICING

If valve stem-to-guide clearance is excessive, guides are removable and can be replaced, or valves with oversize stems are available. Use a reamer (J-7049) to ream guides to correct size for oversize valve stems.

HYDRAULIC VALVE LIFTER SERVICE

Note. Hydraulic lifters used on the diesel engine are of the roller type. Lifters are serviced as complete assemblies only and parts are not interchangeable between lifters.

Provide some means of keeping the lifters and push rods in order so that they can be installed in their original locations. Remove valve covers, rocker arm shafts and push rods. Remove the lifter guide clamps and guide plates. Remove lifters using removal tool (J-29834 ).

Provide some means of keeping the lifters and push rods so that they can be installed in their original locations. Remove cylinder heads, guide clamp and plate. Remove lifters.

Disassembly

With valve lifter removed from engine, remove retainer ring. Remove push rod seat and oil metering valve. Remove plunger and plunger spring. Remove check valve retainer from plunger and remove valve spring.

Inspection

Clean all parts in clean solvent or diesel fuel. Check for nicks, burrs or scoring on parts. Make sure lifter roller operates smoothly and without excessive play.

Reassembly

Coat all parts with clean engine oil, then reverse disassembly procedure.

Prime lifters by working plunger while lifter is submerged in clean kerosene or diesel fuel. Coat roller and bearings with assembly lube. Install lifters into their original position in block. Install lifter guide plate and clamp. Rotate crankshaft 2 full turns while checking to see that lifters are not binding against guide plates.

Scheme 4

1. Drain coolant from engine. Disconnect battery ground cable. Remove fan belt, fan, fan shroud and pulley. Remove A/C hose bracket nuts. Remove oil fill tube. Remove alternator pivot bolt and drive belt. Remove alternator lower bracket.
2. Remove power steering belt and pump. Remove A/C compressor. DO NOT disconnect hoses or lines from either device. Support pump and compressor out of the way. Remove air conditioning compressor belt. Disconnect by-pass and lower radiator hose. Remove water pump bolts. Remove water pump plate and water pump.
3. Rotate engine and align marks on injection pump gear and camshaft gear. Scribe an alignment mark on injection pump flange and on front cover. Remove crankshaft pulley. Remove harmonic balancer using a puller.
4. Remove front cover-to-oil pan bolts. Remove fuel return line clips. Remove injection pump driven gear. Remove injection pump retaining nuts from front cover. Remove baffle and remaining front cover bolts. Remove front cover.

1. Clean sealing surfaces and apply a 3/32" bead of sealer to surface of cover that mates with engine and oil pan. Install front cover and baffle.
2. Install injection pump, noting alignment marks made during removal. Install injection pump drive gear, making sure to align timing marks on pump gear and cam gear. To complete installation, reverse remainder of removal procedure.

With Cover Removed

Pry seal out of cover with a screwdriver. Install new seal with open end of seal toward inside of cover and drive into position. Support cover at seal area before driving in seal.

With Cover Installed

With harmonic balancer removed, pry seal out of front cover. Install seal with open end of seal toward engine and drive into place with a driver (J-22102) and a hammer.

Remove front engine cover as previously outlined. Remove bolts securing camshaft gear. Remove injection pump drive gear. Remove cam sprocket, crank sprocket and timing chain.

Install camshaft sprocket, crankshaft sprocket and timing chain, making sure timing marks on sprockets are aligned. Install and tighten sprocket bolts. Rotate crankshaft 360°. Install front cover as previously outlined, making sure to align marks on injection pump gear and injection pump drive gear. Whenever the timing chain, sprockets or gears are replaced, it is necessary to retime the engine.

1. Remove intake manifold, engine front cover and timing chain. Remove valve covers, rocker arms and push rods, keeping parts in order to enable installation in the same location. Disconnect exhaust pipe from manifolds.
2. Remove cylinder heads with exhaust manifolds attached. Remove grille, A/C condenser and radiator if necessary. Remove vacuum pump. Remove lifters, guide plates and clamps, keeping parts in order to enable installation in same location. Remove fuel pump. Remove camshaft retainer plate and camshaft.

Lubricate camshaft journals and lobes with motor oil. If a new camshaft is being installed, coat camshaft lobes with Molykote. Position camshaft to align timing marks on sprockets. Install remaining components in reverse order of removal.

Scheme 5

1. Disconnect batteries. Remove headlight bezels, grille, and bumper. Remove lower valence panel, hood latch, coolant recovery bottle and upper tie bar. If A/C equipped, disconnect lines and remove condenser.
2. Disconnect low coolant wire and engine oil cooler lines at radiator. Disconnect automatic transmission cooler lines, if equipped. Disconnect upper and lower radiator hoses. Remove radiator and fan assembly.
3. Remove cylinder heads. Remove alternator lower bracket, water pump and crank pulleys. Using damper remover (J-23523 ) and pilot (J-29788 ), remove torsional damper.
4. Remove timing cover plate and water pump. Rotate crankshaft and align timing marks. Remove injection pump driven gear and inner baffle.
5. Align injection pump and front cover by scribing a line across pump flange and front cover. Remove front cover, fuel pump and lifters.
6. Remove injection pump drive gear, timing chain and crankshaft gear. Remove camshaft retainer plate and camshaft.

Lubricate camshaft journals and lobes with motor oil. If a new camshaft is being installed, coat camshaft lobes with Molykote. Position camshaft to align timing marks on sprockets. Install remaining components in reverse order of removal.

CAM LOBE LIFT

With valve cover removed, remove rocker arm. Mount dial indicator on cylinder head. Position indicator stem on push rod with an adapter (J-8520 ). Rotate engine slowly until lifter is on heel of camshaft and set dial indicator to "O". Rotate engine slowly until push rod is at fully raised position. Dial indicator will give total camshaft lobe lift. Lift should be within specifications.

CAMSHAFT BEARINGS

Use camshaft bearing installation and removal tool (J-6098 ) to remove bearings. Install front and rear bearings first by driving toward center of cylinder block. Align oil holes in front 4 bearings with oil holes in bearing bore in block. Position rear camshaft bearing oil hole at or near the 6 o'clock position. Install new rear cam bore plug flush with block, using sealer

1. Disconnect negative battery cable. Remove engine cover, engine oil and transmission oil dipsticks. Disconnect engine oil dipstick tube at left rocker cover.
2. Disconnect transmission oil dipstick at bellhousing and pull from transmission. Disconnect T.V. cable at injection pump rod and at transmission dipstick tube.
3. Remove upper bellhousing bolt and vacuum pump. Raise vehicle. Remove drive shaft. Disconnect speedometer cable at transmission.
4. Disconnect torque converter clutch connector, shift linkage and oil cooler lines at transmission. Remove flexplate inspection cover and flexplate-to-torque converter bolts.
5. Support transmission. Remove transmission mount-to-crossmember nut and remove crossmember. Remove bellhousing-to-cylinder case bolts.
6. Remove transmission and flexplate. Remove dipstick tube from engine oil pan. Drain crankcase. Disconnect engine oil cooler lines at cylinder case. Remove starter.
7. Disconnect battery and cooler line clips. Remove oil pan bolts. Lower pan from block. Remove oil pump to main cap bolt, disconnect drive shaft and let assembly fall in pan. Remove oil pan.

Note. It may be necessary to rotate crankshaft so that forward throw and No. 1 and 2 journals are up, giving front of pan clearance.

1. Disconnect negative battery cables. Raise vehicle and drain engine oil. Remove transmission dust cover.
2. Remove oil pan bolts. Remove left engine mount bolt. Raise engine and remove oil pan.
3. When installing, apply a 1/32" bead of sealer on entire oil pan sealing flange. Sealer must be wet to the touch when bolts are tightened.

1. With oil pan, oil pump and cylinder heads removed, remove any ridge in top of cylinder bore with a ridge reamer. Check connecting rod and cap for identification marks or numbers and identify if necessary. NOTE: Each piston is fitted to its individual cylinder and should be marked for that cylinder.
2. Remove connecting rod cap nuts and rod cap. Cover rod bolts with hose to protect crankshaft journals. Push piston and rod assembly up and out of cylinder block. It will be necessary to rotate crankshaft to various positions to facilitate removing piston and rod assemblies.

Note. When cleaning pistons, DO NOT wire brush any part of piston assembly.

1. Before installing piston and rod assembly, position ring gaps in positions shown in illustration. (Scheme 6) Place connecting rod in bore with bearing tang slots facing away from camshaft.
2. Lubricate rod bearings, cylinder bore and crankshaft journal. Compress piston rings and push piston and rod assembly into position. Install rod cap and tighten rod cap nuts to specifications.

Scheme 6

FITTING PISTONS

Note. A cylinder requiring only minor clean-up (less than .005", .172 mm, taper or wear), that cannot be fitted to the original piston after honing, may be able to use a high-limit standard size piston instead of boring the cylinder to the next oversize.

1. With piston and rod assemblies removed, wipe cylinder bores clean and measure diameter of cylinder with a dial indicator. If cylinder is worn or is tapered more than.005" (.127 mm), cylinder must be bored for oversize pistons.
2. If bore is worn or tapered less than.005" (.127 mm), cylinder can be cleaned and honed. If cylinders are bored, various oversize pistons are available.
3. To check fit of rings in cylinder bore, insert ring in cylinder bore and push ring into bore 1/4" with head of piston and measure ring end gap with a feeler gauge.
4. Before installing rings on pistons, ensure ring grooves are clean of carbon and inspect grooves for nicks or burrs. Install rings with gaps staggered. (Scheme 6)

With piston and rod assembly removed from engine, remove piston pin retaining rings. Slide pin out of piston and connecting rod.

Check clearance of pin in piston. If clearance exceeds specifications, piston and pin must be replaced. Lubricate piston pin and install into piston and rod. Secure pin with retaining rings. Rotate retaining rings in their grooves to ensure that they are completely seated. Check piston for freedom of movement on piston pin.

Note. Following procedures are performed with oil pan and oil pump removed.

CRANKSHAFT MAIN BEARING SERVICE

1. Main bearings are selective fit by manufacturer during production. A standard size bearing may be used in combination with a .001" (.0254 mm) undersize bearing to obtain correct clearance. This combination will decrease clearance .0005" (.0127 mm).
2. Main bearings may be removed and replaced with crankshaft still installed in engine. Mark or identify main bearing caps to cylinder block before removing caps. Bearings are removed from cylinder block using a bearing removal tool. Install tool in oil hole in crankshaft and rotate crankshaft clockwise.
3. Crankshaft clearance, taper or out-of-round conditions can be checked using the Plastigage method. If clearance exceeds specifications, a .001" (.0254 mm) or .002" (.0508 mm) undersize bearing may be installed to obtain correct clearance. Both bearings must be replaced on any journal not within specifications.
4. If correct clearance cannot be obtained or if journal is tapered or is out-of-round more than .0002" (.005 mm), crankshaft must be removed and ground for undersize bearings.
5. To install bearings, ensure crankshaft journal and bearing surface in cap and block are clean. Lubricate journal and install bearing cap. If bearings were removed with crankshaft still installed, use bearing removal and installation tool inserted in crankshaft oil hole to install upper bearing. Install main cap noting identification marks and tighten main bearing bolts evenly and to specifications.

CONNECTING ROD BEARING SERVICE

1. Mark or identify rod cap to rod before removing rod cap nuts. With rod nuts removed, remove rod cap and bearing. Cover rod bolts with hose to protect crankshaft. Push up on piston and rod assembly and remove bearing from rod. Inspect bearings for wear or damage and replace as necessary.
2. Check crankshaft rod bearing journal for out-of-round or taper conditions. If crankshaft is out-of-round or is tapered more than .001" (.0254 mm), crankshaft must be removed and ground for undersize bearings.
3. Check crankshaft clearance using the Plastigage method. If clearance exceeds specifications, a .001" (.0254 mm) or .002" (.0508 mm) undersize bearing may be installed to obtain correct clearance. If clearance is still excessive, crankshaft must be removed and ground for undersize bearings. Connecting rod bearings are available in .010" (.254 mm) and .020" (.508 mm) undersize.
4. To install bearings, clean crankshaft journal and bearing surface in rod. Insert bearing in rod and cap. Lubricate journal an pull piston and rod assembly down, aligning bearing on journal. Install rod cap noting identification marks and tighten rod nuts evenly and to specifications.

THRUST BEARING ALIGNMENT

Pry crankshaft forward as far as possible and check crankshaft end play with a feeler gauge inserted between front of rear main bearing and crankshaft. Replace center main bearing if end play is not to specification.

Scheme 7

REAR MAIN BEARING OIL SEAL

To perform in-vehicle repair on rear main seal, General Motors recommends packing 1 piece of old main seal (lower half) into each side of block seal groove (using tools J-29114-2 , J-33154-2 and J-33154-1 ) along with old upper half of the seal.

After packing extra seal material into block, the excess is trimmed and then bottom half of seal is replaced with new material. However, if replacement of complete seal is desired, it can be done using a tool kit (K-D Tools #492 or S Tools #31700 ) and the following procedure

1. With oil pan removed, remove rear main bearing cap. Loosen all main cap bolts slightly. Thread the screw threads of removal tool into upper half of rear main seal. Withdraw upper half of seal from block.
2. Feed the steel mesh cable through upper rear main seal groove until it comes out on the opposite side of crankshaft. Install a guide funnel over cable end. Lubricate new upper rear main seal and insert it in the gripping end of mesh cable.
3. Pull on opposite end of mesh cable and guide new seal into groove. Remove tool from end of seal. Apply sealer (Loctite 496 ) to rear main cap seal groove and install seal. Seat seal in groove and trim end of seal flush with bearing cap.
4. Place a piece of Plastigage on rear main journal. Install rear main cap and tighten all main bearing caps to specifications. Remove rear main cap and check Plastigage for bearing clearance.
5. If out of specification, check ends of seal for frayed ends or excess material that may be preventing main cap from seating properly. Clean Plastigage from journal and bearing.
6. Apply a thin film of anaerobic sealant to surface of cap that mates with block. Keep sealant off bearing and seal. Apply a light coat of engine oil to surface of crankshaft that rides on seal. Install rear main bearing cap and tighten to specifications.

CRANKCASE CAPACITY

7 quarts (6.6L) including filter change.

OIL FILTER

Replace every 5,000 miles or 12 months, whichever comes first.

NORMAL OIL PRESSURE

40 psi at 2000-3000 RPM. (2.81 kg/cm 2 at 2000-3000 RPM.)

OIL PRESSURE REGULATOR VALVE

In oil pump body, non-adjustable.

ENGINE OILING SYSTEM

Full pressure lubrication through a full flow oil filter and oil cooler is supplied by a gear-type oil pump. Main oil gallery feeds oil through drilled passages to camshaft and crankshaft to lubricate bearings. Valve lifter gallery feeds the valve lifters, which feed the rocker arms through hollow push rods.

Remove oil pan. Remove pump-to-rear main bearing cap bolt. Remove oil pump and extension shaft.

1. Remove pump cover attaching screws and pump cover. Mark gears so they may be reassembled with same tooth indexing. Remove idler gear, drive gear and shaft from pump housing.
2. Remove pressure regulator valve retaining pin from pump cover. Remove regulator valve from pump cover. DO NOT disassemble pickup screen and pipe. Screen and pipe are only serviced as an assembly with the pump.

Note. If pump gears or body are damaged or worn, replacement of entire pump assembly is necessary.

Reassembly & Installation

Clean and check all parts for fit and wear. Reverse removal and disassembly procedure to assemble and install. Smooth side of idler gear faces cover. Check operation of pump before installing.

Note. Bottom of screen must be parallel with bottom of pan.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

GENERAL ENGINE SPECIFICATIONS

GENERAL ENGINE SPECIFICATIONS

VALVE SPECIFICATIONS

VALVE SPECIFICATIONS

PISTON/PIN/RING SPECIFICATIONS

PISTONS, PINS & RINGS SPECIFICATIONS

BEARING SPECIFICATIONS

MAIN & ROD BEARINGS SPECIFICATIONS

VALVE SPRING SPECIFICATIONS

VALVE SPRINGS SPECIFICATIONS

CAMSHAFT SPECIFICATIONS

CAMSHAFT SPECIFICATIONS

See also:
• ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION
• TORQUE SPECIFICATIONS