Chrysler 1998 Voyager Service Manual page 1111

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DESCRIPTION AND OPERATION
ENGINE COMPONENTS . . . . . . . . . . . . . . . . . . 61
ENGINE IDENTIFICATION NUMBER . . . . . . . . . 61
ENGINE LUBRICATION . . . . . . . . . . . . . . . . . . . 61
DIAGNOSIS AND TESTING
CHECKING ENGINE OIL PRESSURE . . . . . . . . . 62
SERVICE PROCEDURES
AUTO LASH ADJUSTER . . . . . . . . . . . . . . . . . . . 62
CHECKING CRANKSHAFT END PLAY . . . . . . . . 65
FITTING CONNECTING ROD BEARINGS . . . . . . 63
FITTING MAIN BEARING . . . . . . . . . . . . . . . . . . 63
VALVE SERVICE RECONDITION . . . . . . . . . . . . 66
REMOVAL AND INSTALLATION
CAMSHAFT SEAL . . . . . . . . . . . . . . . . . . . . . . . 72
CAMSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . 81
CYLINDER HEAD COVER . . . . . . . . . . . . . . . . . 70
CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . 73
ENGINE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . 69
ENGINE MOUNTS . . . . . . . . . . . . . . . . . . . . . . . 68
FRONT CRANKSHAFT OIL SEAL . . . . . . . . . . . . 83
DESCRIPTION AND OPERATION
ENGINE IDENTIFICATION NUMBER
The engine identification number is located on the
rear of the cylinder block just below the cylinder
head (Fig. 1).
ENGINE LUBRICATION
System is a full flow filtration, pressure feed type.
The oil pump is mounted behind the timing belt
cover. The pump inner rotor is driven by the crank-
shaft. The engine oil pan contains a baffle plate to
control oil level fluctuation during engine operation.
ENGINE COMPONENTS
BLOCK: The cylinder block is a light weight
design created by reducing thickness in many parts
and a short 10 mm (3/8 in.) block skirt. High rigidity
is provided with ribs cast in the outer wall, a full
length water jacket, and a mono-block or beam type,
main bearing cap. This single unit four bearing cap
is designed to control vibration of the cylinder block
partition walls.
CRANKSHAFT: A six throw, five weight crank-
shaft is supported by four main bearings with num-
ber three being the thrust bearing. The six separate
connecting rod throws pins reduce torque fluctua-
3.0L ENGINE
INDEX
page
OIL FILTER AND ADAPTOR . . . . . . . . . . . . . . . . 84
OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
PISTON AND CONNECTING ROD . . . . . . . . . . . 78
REAR CRANKSHAFT SEAL . . . . . . . . . . . . . . . . 83
ROCKER ARMS . . . . . . . . . . . . . . . . . . . . . . . . . 72
TIMING BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
DISASSEMBLY AND ASSEMBLY
ROCKER ARMS AND SHAFTS . . . . . . . . . . . . . . 85
CLEANING AND INSPECTION
CYLINDER BORE . . . . . . . . . . . . . . . . . . . . . . . . 87
CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . 86
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
TIMING BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
ADJUSTMENTS
ENGINE MOUNTS . . . . . . . . . . . . . . . . . . . . . . . 88
SPECIFICATIONS
3.0L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
TORQUE CHART 3.0L . . . . . . . . . . . . . . . . . . . . 90
SPECIAL TOOLS
3.0L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
tions while a torsional vibration damper is used to
control torsion caused vibration of the crankshaft.
Rubber lipped seals are used at front and rear. The
3.0L ENGINE
Fig. 1 Engine Identification
9 - 61
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