Chrysler New Yorker. Manual — part 217
3.2L ENGINE
INDEX
page
page
DESCRIPTION AND OPERATION
3.2L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.2L ENGINE COMPONENTS . . . . . . . . . . . . . . . 65
3.2L GENERAL SPECIFICATION . . . . . . . . . . . . 65
ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . 65
DIAGNOSIS AND TESTING
CHECKING ENGINE OIL PRESSURE . . . . . . . . . 67
HYDRAULIC LASH ADJUSTER . . . . . . . . . . . . . . 67
TESTING VALVE SPRINGS . . . . . . . . . . . . . . . . 67
SERVICE PROCEDURES
CHECKING CRANKSHAFT END PLAY . . . . . . . . 71
CRANKSHAFT MAIN BEARING FITTING . . . . . . 71
FITTING PISTON RINGS . . . . . . . . . . . . . . . . . . 68
INSTALLATION OF CONNECTING ROD
BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
PISTONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
REFACING VALVES AND VALVE SEATS . . . . . . 72
REMOVAL AND INSTALLATION
CAMSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
CAMSHAFT OIL SEAL . . . . . . . . . . . . . . . . . . . . 93
CAMSHAFT SPROCKETS AND TIMING
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . 83
CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . 81
CRANKSHAFT DAMPER . . . . . . . . . . . . . . . . . . 78
CRANKSHAFT MAIN BEARINGS . . . . . . . . . . . . 96
CRANKSHAFT OIL SEAL—REAR . . . . . . . . . . . . 94
CRANKSHAFT OIL SEAL RETAINER—REAR . . . 95
CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . 80
CYLINDER HEAD COVERS . . . . . . . . . . . . . . . . 79
ENGINE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . 76
ENGINE CORE AND OIL PLUGS . . . . . . . . . . . 101
ENGINE MOUNTS—LEFT AND RIGHT . . . . . . . . 74
ENGINE MOUNT—REAR . . . . . . . . . . . . . . . . . . 74
FRONT CRANKSHAFT OIL SEAL . . . . . . . . . . . . 93
OIL FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
PISTON AND CONNECTING ROD . . . . . . . . . . . 98
ROCKER ARM AND SHAFT ASSEMBLY . . . . . . . 85
SPARK PLUG TUBES . . . . . . . . . . . . . . . . . . . . . 79
STRUCTURAL COLLAR . . . . . . . . . . . . . . . . . . . 75
TIMING BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
TIMING BELT COVERS . . . . . . . . . . . . . . . . . . . 88
VALVE AND VALVE SPRINGS . . . . . . . . . . . . . . 88
VALVE STEM SEALS OR VALVE SPRINGS—IN
VEHICLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
DISASSEMBLY AND ASSEMBLY
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
ROCKER ARMS AND SHAFT ASSEMBLY . . . . . 102
CLEANING AND INSPECTION
CAMSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
CYLINDER BORE . . . . . . . . . . . . . . . . . . . . . . . 106
CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . 103
ENGINE HYDRO-MOUNT INSULATORS . . . . . . 106
OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
ROCKER ARMS . . . . . . . . . . . . . . . . . . . . . . . . 103
TIMING BELT INSPECTION—IN VEHICLE . . . . 106
VALVE INSPECTION . . . . . . . . . . . . . . . . . . . . . 104
SPECIFICATIONS
3.2L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . 107
TORQUE CHART . . . . . . . . . . . . . . . . . . . . . . . 109
SPECIAL TOOLS
3.2L ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . 109
LH
3.2L ENGINE
9 - 63
DESCRIPTION AND OPERATION
3.2L ENGINE
ENGINE IDENTIFICATION NUMBER
The engine identification number is located on the
rear of engine block just below the cylinder head
(Fig. 1).
9 - 64
3.2L ENGINE
LH
3.2L GENERAL SPECIFICATION
Type . . . . . . . . . . . . . . . . . 60° SOHC V-6 24 Valve
Displacement . . . . . . . . . . . . . . 3.2 Liters 3231 cc
(195 Cubic Inches)
Bore . . . . . . . . . . . . . . . . . . . . 92.0 mm (3.622 in.)
Stroke . . . . . . . . . . . . . . . . . . 81.0 mm (3.189 in.)
Compression Ratio . . . . . . . . . . . . . . . . . . . . 9.5:1
Horsepower . . . . . . . . . . . . . . . . . . . 225 6300 rpm
Torque . . . . . . . . . . . . . . . . . . 225 lb. ft. 3800 rpm
Lead Cylinder . . . . . . . . . . . . . . . . #1 Right Bank
Firing Order . . . . . . . . . . . . . . . . . . 1, 2, 3, 4, 5, 6
Cylinder Block . . . . . . Aluminum Deep Skirt With
Cast-In-Place Iron Liners
Crankshaft . . . . . . . . . . . . . . . . . . . . Forged Steel
Camshaft . Two Unique Castings (Right And Left)
Cylinder Head . . . . . . . . . . . . . . . . . . . Aluminum
Piston . . . . . Aluminum (Full Floating Piston Pin)
Lubrication . . Pressure Feed-Full Flow Filtration
(Direct Crankshaft Driven Pump)
Cooling System . Liquid Cooled-Forced Circulation
ENGINE LUBRICATION SYSTEM
The lubrication system is a full flow filtration pres-
sure feed type. Oil, stored in the oil pan, is taken in
and discharged by a gerotor type oil pump directly
coupled to the crankshaft and its pressure is regu-
lated by a relief valve. The oil is fed through an oil
filter and to the crankshaft journals from the oil gal-
lery in the cylinder block. This gallery also feeds oil
under pressure to the cylinder heads. At each cylin-
der head, the oil flows through passages to the rocker
shafts which then feed the camshaft journals, rocker
arms, and hydraulic lash adjusters (Fig. 2).
3.2L ENGINE COMPONENTS
NOTE: The 3.2L engine is a NON free-wheeling
design.
BLOCK
The cylinder block is a light weight design created
by reducing thickness in many parts and a short 10
mm (3/8 inch.) block skirt. High rigidity is provided
with ribs cast in the outer wall, a full length water
jacket, and a cross bolt type main bearing caps.
CRANKSHAFT
A six throw, five weight crankshaft is supported by
four main bearings with number two being the thrust
bearing. The six separate connecting rod throws are
an even-firing design which reduces torque fluctua-
tions while a torsional vibration damper is used to
control torsion caused vibration of the crankshaft.
Fig. 1 Engine Identification
LH
3.2L ENGINE
9 - 65
DESCRIPTION AND OPERATION (Continued)
Rubber lipped seals are used at front and rear. The
front seal is retained in the oil pump case and the
rear is retained in a block-mounted housing.
PISTONS AND CONNECTING RODS
The pistons are made of a high strength aluminum
alloy. Top land height has been decreased to reduce
emissions. Piston skirts are coated with a solid lubri-
cant for scuff resistance. Connecting rod is forged
steel with a squirt hole and attaches to the piston
with a full floating pin retained by lock rings.
CYLINDER HEAD
The aluminum alloy cylinder heads feature cross-
flow type intake and exhaust ports. Valve guides and
seat inserts are powdered metal. Valves of heat resis-
tant steel are arranged in a “V” with each camshaft
on center. To improve combustion speed the cham-
bers are a compact spherical design with a squish
area of approximately 30 percent of the piston top
area. The cylinder heads are common to either cylin-
der bank by reversing the direction of installation.
CAMSHAFTS AND TIMING DRIVE
A single overhead camshaft per cylinder head pro-
vides valve actuation. The left camshaft accommo-
dates a DIS pick-up wheel and is therefore longer.
Each camshaft is supported by four bearing journals.
Thrust for each camshaft is taken at a thrust plate
attached to the rear of each cylinder head. Right and
left camshaft driving sprockets are not interchange-
able because of the DIS pick-up wheel on the left
sprocket. The sprockets and the engine water pump
are driven by a single notched timing belt. Camshaft
bearing lubrication is provided via oil feed passage
through each pedestal dowel.
ROCKER ARM SHAFTS
The shafts are supported by several forged alumi-
num alloy pedestals, which are fastened to the cylin-
der head. Four shafts are used, one for each intake
and exhaust rocker arm bank on each cylinder head.
The shafts are hollow to provide a duct for lubricat-
ing oil flow from the cylinder head to the valve mech-
anisms. One hollow dowel per pedestal is used to
locate the pedestal to the cylinder head, orient the
exhaust rocker shaft, and serve as a cam bearing oil
feed passage.
ROCKER ARMS
Rocker arms are of light weight permanent mold
aluminum alloy with a roller type follower operating
against the camshaft. The valve actuating end of the
rocker arms are machined to retain hydraulic lash
adjusters, eliminating the need for manual valve lash
adjustment.
VALVES
Valves are made of highly heat-resistant steel and
are chrome plated to prevent scuffing. The intake
Fig. 2 Oil Lubrication System
9 - 66
3.2L ENGINE
LH
DESCRIPTION AND OPERATION (Continued)
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