ENGINE
TABLE OF CONTENTS
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2.7L ENGINE..............................1 3.2/3.5L ENGINE ......................... 74
2.7L ENGINE
TABLE OF CONTENTS
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DESCRIPTION AND OPERATION
2.7L ENGINE .............................2
CYLINDER BLOCK.........................3
CRANKSHAFT ............................5
PISTONS AND CONNECTING RODS...........5
CYLINDER HEAD..........................5
VALVES.................................5
VALVE SPRINGS ..........................6
TIMING DRIVE SYSTEM ....................6
CAMSHAFT ..............................7
ROCKER ARMS...........................8
INTAKE MANIFOLD ........................9
EXHAUST MANIFOLD ......................9
ENGINE LUBRICATION .....................9
DIAGNOSIS AND TESTING
ENGINE DIAGNOSIS—INTRODUCTION........13
ENGINE DIAGNOSIS—PERFORMANCE .......13
ENGINE DIAGNOSIS—MECHANICAL .........15
CHECKING ENGINE OIL PRESSURE..........16
INTAKE MANIFOLD LEAKAGE DIAGNOSIS .....16
CYLINDER COMPRESSION PRESSURE TEST . . 17
CYLINDER COMBUSTION PRESSURE
LEAKAGE TEST ........................17
CYLINDER HEAD GASKET FAILURE
DIAGNOSIS ...........................17
LASH ADJUSTER (TAPPET) NOISE
DIAGNOSIS ...........................18
ENGINE OIL LEAK INSPECTION .............19
SERVICE PROCEDURES
ENGINE OIL LEVEL—CHECKING ............20
ENGINE OIL SERVICE .....................20
FORM-IN-PLACE GASKETS & SEALERS.......21
ENGINE GASKET SURFACE PREPARATION ....22
REPAIR OF DAMAGED OR WORN THREADS . . . 22
CYLINDER BORE—HONING ................23
HYDROSTATIC LOCKED ENGINE ............23
PISTONS ...............................23
PISTON RING—FITTING ...................24
CONNECTING ROD BEARING—
INSTALLATION .........................25
CRANKSHAFT MAIN BEARING—FITTING ......26
CRANKSHAFT END PLAY—CHECKING........27
VALVE AND VALVE SEAT—REFACING ........27
ENGINE TIMING—VERIFICATION ............29
INTAKE MANIFOLD VACUUM PORT REPAIR—
2.7L .................................30
REMOVAL AND INSTALLATION
ENGINE MOUNTS—LEFT AND RIGHT.........31
ENGINE MOUNT—REAR ...................31
STRUCTURAL COLLAR ....................32
ENGINE ASSEMBLY.......................32
CRANKSHAFT DAMPER ...................35
INTAKE MANIFOLD—UPPER................36
INTAKE MANIFOLD—LOWER ...............37
EXHAUST MANIFOLD .....................38
CYLINDER HEAD COVERS .................39
CAMSHAFT .............................40
ROCKER ARMS ..........................41
HYDRAULIC LASH ADJUSTER ..............42
VALVE STEM SEALS OR VALVE SPRINGS—IN
VEHICLE..............................42
CYLINDER HEAD.........................43
VALVE AND VALVE SPRINGS ...............44
TIMING CHAIN COVER ....................45
TIMING CHAIN AND SPROCKETS ............46
CRANKSHAFT SPROCKET .................51
CRANKSHAFT OIL SEAL—FRONT............52
CRANKSHAFT OIL SEAL—REAR.............52
CRANKSHAFT OIL SEAL RETAINER—REAR ....53
OILPAN................................54
CRANKSHAFT ...........................55
OILFILTER .............................57
OIL PUMP ..............................57
PISTON AND CONNECTING ROD ............58
LH ENGINE 9 - 1
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