Dodge 2000 DURANGO Service Manual page 595

9 - 86 5.2L ENGINE
DESCRIPTION AND OPERATION
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . . 87
EXHAUST MANIFOLD . . . . . . . . . . . . . . . . . . . . . 89
INTAKE MANIFOLD . . . . . . . . . . . . . . . . . . . . . . . 89
CYLINDER HEAD COVER GASKET . . . . . . . . . . . 90
CYLINDER HEAD. . . . . . . . . . . . . . . . . . . . . . . . . 90
VALVES AND VALVE SPRINGS . . . . . . . . . . . . . . 90
ENGINE OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . 90
CRANKSHAFT OIL SEALS . . . . . . . . . . . . . . . . . . 90
PISTON AND CONNECTING ROD . . . . . . . . . . . . 90
CRANKSHAFT MAIN BEARINGS . . . . . . . . . . . . . 91
CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
SERVICE PROCEDURES
FORM-IN-PLACE GASKETS. . . . . . . . . . . . . . . . . 91
ENGINE PERFORMANCE . . . . . . . . . . . . . . . . . . 92
ENGINE OIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
REPAIR DAMAGED OR WORN THREADS . . . . . . 94
CYLINDER BORE—HONING . . . . . . . . . . . . . . . . 94
HYDROSTATIC LOCK . . . . . . . . . . . . . . . . . . . . . 95
VALVE TIMING . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
VALVE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . 95
MEASURING TIMING CHAIN STRETCH. . . . . . . . 97
PISTONS—FITTING . . . . . . . . . . . . . . . . . . . . . . . 98
PISTON RINGS—FITTING . . . . . . . . . . . . . . . . . . 98
CONNECTING ROD BEARINGS—FITTING. . . . . 100
CRANKSHAFT MAIN BEARINGS—FITTING . . . . 100
REMOVAL AND INSTALLATION
ENGINE MOUNTS—FRONT . . . . . . . . . . . . . . . . 100
ENGINE MOUNT—REAR . . . . . . . . . . . . . . . . . . 102
ENGINE ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . 102
INTAKE MANIFOLD . . . . . . . . . . . . . . . . . . . . . . 103
EXHAUST MANIFOLD . . . . . . . . . . . . . . . . . . . . 105
CYLINDER HEAD COVER . . . . . . . . . . . . . . . . . 106
ROCKER ARMS AND PUSH RODS . . . . . . . . . . 107
VALVE SPRING AND STEM SEAL
REPLACEMENT-IN VEHICLE . . . . . . . . . . . . . 107
DESCRIPTION AND OPERATION
ENGINE
DESCRIPTION
The 5.2 Liter (318 CID) eight-cylinder engine is a
V-Type lightweight, single cam, overhead valve
engine with hydraulic roller tappets.
The engine lubrication system consists of a rotor
type oil pump and a full flow oil filter.
5.2L ENGINE
TABLE OF CONTENTS
page
CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . 107
VALVES AND VALVE SPRINGS . . . . . . . . . . . . . 108
HYDRAULIC TAPPETS . . . . . . . . . . . . . . . . . . . . 109
VIBRATION DAMPER . . . . . . . . . . . . . . . . . . . . . 109
TIMING CHAIN COVER . . . . . . . . . . . . . . . . . . . 110
TIMING CHAIN . . . . . . . . . . . . . . . . . . . . . . . . . . 111
CAMSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
CAMSHAFT BEARINGS . . . . . . . . . . . . . . . . . . . 113
CRANKSHAFT MAIN BEARINGS . . . . . . . . . . . . 113
DISTRIBUTOR DRIVE SHAFT BUSHING . . . . . . 114
OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
PISTON AND CONNECTING ROD ASSEMBLY . . 116
CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . 116
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
CRANKSHAFT OIL SEAL—FRONT . . . . . . . . . . . 117
CRANKSHAFT OIL SEALS—REAR . . . . . . . . . . . 118
ENGINE CORE OIL AND CAMSHAFT PLUGS . . 120
DISASSEMBLY AND ASSEMBLY
VALVE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . 121
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
CYLINDER BLOCK. . . . . . . . . . . . . . . . . . . . . . . 124
CLEANING AND INSPECTION
CYLINDER HEAD COVER . . . . . . . . . . . . . . . . . 124
CYLINDER HEAD ASSEMBLY . . . . . . . . . . . . . . 124
PISTON AND CONNECTING ROD ASSEMBLY . . 124
OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
CYLINDER BLOCK. . . . . . . . . . . . . . . . . . . . . . . 127
INTAKE MANIFOLD . . . . . . . . . . . . . . . . . . . . . . 127
EXHAUST MANIFOLD . . . . . . . . . . . . . . . . . . . . 127
SPECIFICATIONS
5.2L ENGINE SPECIFICATIONS . . . . . . . . . . . . . 128
TORQUE SPECIFICATIONS . . . . . . . . . . . . . . . . 132
SPECIAL TOOLS
5.2L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
The cylinders are numbered from front to rear; 1,
3, 5, 7 on the left bank and 2, 4, 6, 8 on the right
bank. The firing order is 1-8-4-3-6-5-7-2 (Fig. 1). This
engine is designed for unleaded fuel.
The engine serial number is stamped into a
machined pad located on the left, front corner of the
cylinder block. When component part replacement is
necessary, use the engine type and serial number for
reference (Fig. 2).
DN
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