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NOTICE: When fasteners are removed, always reinstall them at the same location from which they were
removed. If a fastener needs to be replaced, use the correct part number fastener for that application. If
the correct part number fastener is not available, a fastener of equal size and strength (or stronger) may
be used. Fasteners that are not reused and those requiring thread locking compound will be called out.
The correct torque value m ust be used when installing fasteners that require it. If the above conditions
are not followed, parts or system damage could result
SUBJECT
General D escription......................................................................................................................................................6A4- 3
Engine C onstruction................................................................................................................................................ 6A4- 3
Cylinder B lock........................................................................................................................................................6A4- 3
Cylinder H eads.......................................................................................................................................................6A4- 3
Crankshaft............................................................................................................................................................... 6A4- 3
C am sh aft..................................................................................................................................................................6A4- 3
Pistons and Connecting R o d s .......................................................................................................................... 6A4- 3
Balance S h a ft......................................................................................................................................................... 6A4- 3
Valve T ra in .............................................................................................................................................................. 6A4- 3
Intake M anifolds.................................................................................................................................................... 6A4- 3
Engine Lubrication................................................................................................................................................... 6A4- 8
Disassembly of the Engine........................................................................................................................................ 6A4-10
Tools and Shop Equipment.................................................................................................................................... 6A4-10
Accessory Removal.................................................................................................................................................. 6A4-10
C lean in g ....................................................................................................................................................................... 6A4-10
Draining the E n g in e ................................................................................................................................................. 6A4-10
Exhaust Manifold Removal..................................................................................................................................... 6A4-10
Coolant Pump R em oval...........................................................................................................................................6A4-10
Rocker Arm Cover R em o val..................................................................................................................................6A4-10
EGR Valve R em oval................................................................................................................................................. 6A4-11
Upper Intake Manifold R e m o va l........................................................................................................................... 6A4-11
Lower Intake Manifold R em o val........................................................................................................................... 6A4-11
Valve Train Component R em oval......................................................................................................................... 6A4-11
Cylinder Head R em o val...........................................................................................................................................6A4-13
Torsional Damper Rem oval.................................................................................................................................... 6A4-13
Oil Pan Rem oval........................................................................................................................................................6A4-13
Oil Pump Removal.................................................................................................................................................... 6A4-14
Flywheel Removal......................................................................................................................................................6A4-14
Front Cover R em oval............................................................................................................................................... 6A4-14
Timing Chain and Camshaft Sprocket Rem oval............................................................................................. 6A4-14
Camshaft R em oval................................................................................................................................................... 6A4-14
Balance Shaft Removal............................................................................................................................................6A4-15
Piston and Connecting Rod R em oval................................................................................................................ 6A4-15
Crankshaft Rear Oil Seal R em oval......................................................................................................................6A4-17
Crankshaft Rear Oil Seal Retainer R em oval.................................................................................................... 6A4-17
Crankshaft Rem oval................................................................................................................................................. 6A4-17
Main Bearing Removal (Without Removing Crankshaft).............................................................................. 6A4-18
Cleaning, Inspection, and Repair............................................................................................................................. 6A4-18
B lo c k .............................................................................................................................................................................6A4-18
Cylinder Bore.......................................................................................................................................................... 6A4-19
Piston and Connecting Rod A ssem bly.............................................................................................................. 6A4-20
SECTION 6A4
4.3L V6
RPO L35, VIN W
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