shaft CHRYSLER CARAVAN 2002 Service Manual

REMOVAL - ENGINE ASSEMBLY
(1) Perform fuel pressure release procedure (Refer
to 14 - FUEL SYSTEM/FUEL DELIVERY - STAN-
DARD PROCEDURE).
(2) Disconnect negative battery cable.
(3) Remove air cleaner and hoses.
(4) Disconnect the fuel line from fuel rail (Refer to
14 - FUEL SYSTEM/FUEL DELIVERY/QUICK
CONNECT FITTING - STANDARD PROCEDURE).
(5) Remove the wiper module (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS/WIPER MODULE -
REMOVAL).
(6) Block off heater hoses to the rear heater sys-
tem using pinch-off pliers (if equipped).
(7) Drain the cooling system (Refer to 7 - COOL-
ING - STANDARD PROCEDURE).
(8) Disconnect the heater hoses.
(9) Remove the radiator upper support crossmem-
ber (Refer to 23 - BODY/EXTERIOR/GRILLE OPEN-
ING REINFORCEMENT - REMOVAL).
(10) Remove the radiator fans (Refer to 7 - COOL-
ING/ENGINE/RADIATOR FAN - REMOVAL).
(11) Disconnect the throttle cables from the throt-
tle body.
(12) Disconnect the MAP, IAC, and TPS electrical
connectors.
(13) Disconnect the EGR transducer electrical con-
nector (if equipped).
(14) Disconnect the vacuum hoses from throttle
body.
(15) Disconnect the brake booster and speed con-
trol vacuum hoses.
(16) Disengage wire harness clip from the right
side engine mount.
(17) Remove the power steering reservoir from
mounting position and set aside.Do notdisconnect
hose.
(18) Disconnect ground strap from rear of cylinder
head.
(19) Disconnect engine coolant temperature (ECT)
sensor and ignition coil electrical connectors.
(20) Disconnect the fuel injector electrical harness
connector and disengage clip from support bracket.
(21) Disconnect camshaft and crankshaft position
sensor electrical connectors.
(22) Evacuate air conditioning system. Refer to 24
- HEATING & AIR CONDITIONING.
(23) Disconnect A/C compressor electrical connec-
tor.(24) Disconnect the A/C lines from compressor.
Cover and seal all openings of hoses and compressor.
(25) Remove the radiator upper hose.
(26) Disengage electrical harness clip at transaxle
dipstick tube.
(27) Remove transaxle dipstick tube. Seal opening
using a suitable plug.
NOTE: When the transaxle cooler lines are removed
from the rolled-groove type fittings at the transaxle,
damage to the inner wall of the hose will occur. To
prevent prevent potential leakage, the cooler hoses
must be cut off flush at the transaxle fitting, and a
service cooler hose splice kit must be installed
upon reassembly.
(28) Using a blade or suitable hose cutter, cut
transaxle oil cooler lines off flush with fittings. Plug
cooler lines and fittings to prevent debris from enter-
ing transaxle or cooler circuit. A service splice kit will
be installed upon reassembly.
(29) Disconnect transaxle shift linkage and electri-
cal connectors.
(30) Raise vehicle on hoist and drain the engine
oil.
(31) Remove the axle shafts. (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/HALF SHAFT - REMOVAL)
(32) Remove crossmember cradle plate (Fig. 6).
Fig. 6 Crossmember Cradle Plate
1 - CRADLE PLATE
RSENGINE 3.3/3.8L9-87
ENGINE 3.3/3.8L (Continued)
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(20) Install the powertrain struts (Fig. 8).
(21) Install the engine rear mount bracket.
(22) Install the engine front mount and bracket
assembly.
(23)AWD equipped;Install the power transfer
unit (PTU) (Refer to 21 - TRANSMISSION/TRANS-
AXLE/POWER TRANSFER UNIT - INSTALLA-
TION).
(24) Install the axle shafts (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/HALF SHAFT - INSTALLA-
TION).(25) Connect exhaust pipe to manifold (Fig. 7).
(26) Install crossmember cradle plate (Fig. 6).
(27) Lower vehicle.
(28) Connect transaxle shift linkage.
(29) Connect transaxle electrical connectors.
(30) Remove plugs from transmission cooler hoses
and install transaxle oil cooler line service splice kit.
Refer to instructions included with kit.
(31) Install transaxle dipstick tube and attach
electrical harness clip.
(32) Connect the A/C lines to compressor.
(33)
Connect the A/C compressor electrical connector.
(34) Evacuate and recharge A/C system.
(35) Connect crankshaft and camshaft position
sensors.
(36) Connect the fuel injector electrical harness
connector and engage clip to support bracket.
(37) Connect engine coolant temperature (ECT)
sensor and ignition coil electrical connectors.
(38) Connect the ground strap to rear of cylinder
head.
(39) Install power steering reservoir.
(40) Engage wire harness clip to engine right side
mount.
(41) Connect the brake booster and speed control
vacuum hoses.
(42) Connect the vacuum hoses to the throttle
body.
(43) Connect the EGR transducer electrical connec-
tor (if equipped).
(44) Connect the TPS, IAC, and MAP sensor elec-
trical connectors.
(45) Connect throttle cables to throttle body.
(46) Install the radiator fans (Refer to 7 - COOL-
ING/ENGINE/RADIATOR FAN - INSTALLATION).
(47) Connect the radiator upper hose.
(48) Connect the heater hoses. Remove pinch-off
pliers from the rear heater hoses (if equipped).
(49) Install the radiator upper support crossmem-
ber (Refer to 23 - BODY/EXTERIOR/GRILLE OPEN-
ING REINFORCEMENT - INSTALLATION).
(50) Install the wiper module (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS/WIPER MODULE -
INSTALLATION).
(51) Connect the fuel line to fuel rail (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY/FUEL LINES -
STANDARD PROCEDURE).
(52) Install the air cleaner and hoses.
(53) Install new oil filter. Fill engine crankcase
with proper oil to correct level.
(54) Connect negative cable to battery.
(55) Fill the cooling system (Refer to 7 - COOLING
- STANDARD PROCEDURE).
(56) Start engine and run until operating temper-
ature is reached.
(57) Adjust transmission linkage, if necessary.
Fig. 13 Right Mount to Engine
1 - BOLT
2 - MOUNT BRACKET
3 - ENGINE RIGHT MOUNT ASSEMBLY
Fig. 14 LEFT MOUNT TO FRAME BRACKET
1 - FRAME BRACKET
2 - FRAME RAIL - LEFT
3 - BOLT
4 - TRANSAXLE MOUNT
RSENGINE 3.3/3.8L9-91
ENGINE 3.3/3.8L (Continued)
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DESCRIPTION SPECIFICATION
Ring End GapÐ2nd
Compression Ring0.28±0.57 mm
(0.011±0.022 in.)
Wear Limit 1.0 mm
(0.039 in.)
Ring End GapÐOil
Control Steel Rails0.23±0.78 mm
(0.009±0.030 in.)
Wear Limit 1.88 mm
(0.074 in.)
Ring Side ClearanceÐ
Top Compression Ring
Ð3.3L 0.030±0.080 mm
(0.0012±0.0031 in.)
Ð3.8L 0.030±0.069 mm
(0.0012±0.0027 in.)
Wear Limit 0.10 mm
(0.004 in.)
Ring Side ClearanceÐ
2nd Compression Ring
Ð3.3L 0.030±0.095 mm
(0.0012±0.0037 in.)
Ð3.8L 0.041±0.085 mm
(0.0016±0.0033 in.)
Wear Limit 0.13 mm
(0.005 in.)
Ring Side ClearanceÐOil
Ring Pack0.039±0.200 mm
(0.0015±0.0078 in.)
Wear Limit 0.266 mm
(0.009 in.)
Ring WidthÐTop
Compression Ring
Ð3.3L 1.46±1.49 mm
(0.0575±0.058 in.)
Ð3.8L 1.175±1.190 mm
(0.0462±0.0468 in.)
Ring WidthÐ2nd
Compression Ring
Ð3.3/3.8L1.46±1.49 mm
(0.0575±0.058 in.)
Ring WidthÐOil Ring
(Steel Rails)
Ð3.3L 0.435±0.490 mm
(0.017±0.019 in.)
Ð3.8L 0.435±0.510 mmDESCRIPTION SPECIFICATION
(0.017±0.020 in.)
Connecting Rod
Bearing Clearance 0.019±0.065 mm
(0.0008±0.0026 in.)
Wear Limit 0.074 mm
(0.003 in.)
Side Clearance 0.13±0.32 mm
(0.005±0.013 in.)
Wear Limit 0.38 mm
(0.015 in.)
Crankshaft
Material Nodular Iron
Connecting Rod Journal
Diameter57.979±58.005 mm
(2.2827±2.2837 in.)
Main Bearing Journal
Diameter63.993±64.013 mm
(2.5194±2.5202 in.)
Journal Out-of-Round
(Max.)0.025 mm
(0.001 in.)
Journal Taper (Max.) 0.025 mm
(0.001 in.)
End Play 0.09±0.24 mm
(0.0036±0.0095 in.)
Wear Limit 0.381 mm
(0.015 in.)
Main Bearing Diametrical
Clearance
ÐNo. 1, 2, 3, 4 0.011±0.055 mm
(0.0005±0.0022 in.)
Wear Limit 0.076 mm
(0.003 in.)
Camshaft
Journal Diameter
No.1 50.724±50.775 mm
(1.997±1.999 in.)
No.2 50.317±50.368 mm
(1.9809±1.9829 in.)
No.3 49.936±49.987 mm
(1.9659±1.9679 in.)
No.4 49.530±49.581 mm
(1.9499±1.9520 in.)
Bearing ClearanceÐ
Diametrical0.025±0.101 mm
(0.001±0.004 in.)
RSENGINE 3.3/3.8L9-93
ENGINE 3.3/3.8L (Continued)
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DESCRIPTION SPECIFICATION
Bearing Clearance (Max.
allowable)0.127 mm
(0.005 in.)
End Play 0.254±0.508 mm
(0.010±0.020 in.)
(Max. allowable) 0.304 mm
(0.012 in.)
Camshaft Bearing
Diameter
No. 1 50.800±50.825 mm
(1.9999±2.0009 in.)
No. 2 50.393±50.419 mm
(1.9839±1.9849 in.)
No. 3 50.013±50.038 mm
(1.9690±1.9699 in.)
No. 4 49.606±49.632 mm
(1.9529±1.954 in.)
Exhaust Valve Timing
ClosesÐ3.3L (ATDC) 13É
ClosesÐ3.8L (ATDC) 18É
OpensÐ3.3L (BBDC) 43É
OpensÐ3.8L (BBDC) 46É
DurationÐ3.3L 236É
DurationÐ3.8L 244É
Intake Valve Timing
ClosesÐ3.3L (ABDC 52É
ClosesÐ3.8L (ABDC 63É
OpensÐ3.3L (ATDC) 6É
OpensÐ3.8L (ATDC) 1É
DurationÐ3.3L 226É
DurationÐ3.8L 242É
Valve OverlapÐ3.3L 7É
Valve OverlapÐ3.8L 17É
Lifters
Type Hydraulic Roller
Diameter O.D. 22.949±22.962 mm
(0.903±0.904 in.)
Clearance In Block 0.020±0.061 mm
0.0007±0.0024 in.)
Cylinder Head
Gasket Thickness
(Compressed)0.65±0.75 mm
(0.025±0.029 in.)DESCRIPTION SPECIFICATION
Valve Seat
Angle 44.5±45É
Valve Seat Runout
(Service Limits)0.0762 mm
(0.003 in.)
Valve Seat WidthÐIntake
& Exhaust1.50±2.00 mm
(0.057±0.078 in.)
Valve Guide
Guide Bore Diameter
(Std.)6.975±7.00 mm
(0.274±0.275 in.)
Valves
Valve Lift (Zero
Lash)ÐIntake & Exhaust
Ð3.3L 9.80 mm
(0.385 in.)
Ð3.8L 11.0 mm
(0.433 in.)
Face AngleÐIntake 45±45.5É
Face AngleÐExhaust 45±45.5É
Head DiameterÐIntake 47.87±48.13 mm
(1.88±1.89 in.)
Head DiameterÐExhaust 35.37±35.63 mm
(1.39±1.40 in.)
Valve Margin
Intake 0.825±0.973 mm
(0.032±0.038 in.)
Exhaust 1.565±1.713 mm
(0.061±0.067 in.)
Valve Length (Overall)
Intake 125.84±126.6 mm
(4.95±4.98 in.)
Exhaust 127.2±127.96 mm
(5.00±5.04 in.)
Valve Stem Tip Height
Intake (valve tip to spring
seat washer)48.1±49.7 mm
(1.89±1.95 in.)
Exhaust (valve tip to
spring seat washer)48.53±50.09 mm
(1.91±1.97 in.)
Valve Stem Diameter
Intake (Standard) 6.935±6.953 mm
(0.2730±0.2737 in.)
9 - 94 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
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DESCRIPTION SPECIFICATION
Exhaust (Standard) 6.906±6.924 mm
(0.2718±0.2725 in.)
Valve Stem to Guide Clearance
Intake 0.025±0.065 mm
(0.001±0.0025 in.)
Max. Allowable (Rocking
Method)0.247 mm
(0.010 in.)
Exhaust 0.059±0.094 mm
(0.002±0.0037 in.)
Max. Allowable (Rocking
Method)0.414 mm
(0.016 in.)
Push Rods
Length 135.438 mm
(5.33 in.)
Valve Springs
Free Length (Approx.) 51.4 mm
(2.02 in.)
Wire Diameter 3.95±4.77 mm
(0.15±0.19 in.)
Number of Coils 7.52
Spring Tension (Valve
Closed)376.4±424.4 N @ 41.9
mm
(84.6±95.6 lbs. @ 1.65
in.)
Installed Height 41.1±42.7 mm
(1.61±1.68 in.)
Oil Pump
Clearance Over
RotorsÐInner and Outer
(Max.)0.10 mm
(0.004 in.)
Cover Out-of-Flat (Max.) 0.025 mm
(0.001 in.)
Inner Rotor Thickness
(Min.)7.64 mm
(0.301 in.)
Outer Rotor Thickness
(Min.)7.64 mm
(0.301 in.)
Outer Rotor Clearance
(Max.)0.039 mm
(0.015 in.)
Outer Rotor Diameter
(Min.)79.95 mmDESCRIPTION SPECIFICATION
(3.148 in.)
Tip Clearance Between
Rotors (Max.)0.20 mm
(0.008 in.)
Oil Pressure
At Curb Idle Speed*
(Minimum with engine at
operating temerature)34.47 kPa
(5 psi)
At 3000 rpm 205±551 kPa
(30±80 psi)
Oil Filter By-pas Valve
Setting62±103 kPa
(9±15 psi)
Oil Pressure Switch
Actuating Pressure14±28 kPa
(2±4 psi)
caution:
*If pressure is ZERO at curb idle, DO NOT run engine
at 3000 rpm.
SPECIFICATIONS - TORQUE
DESCRIPTION N´mFt.
Lbs.In.
Lbs.
Camshaft SprocketÐBolt 54 40 Ð
Camshaft Thrust
PlateÐBolts12 Ð 105
Connecting Rod
CapÐBolts54 +
1¤4
turn40
+1¤4
turnÐ
Crankshaft Main Bearing
CapÐBolts41 +
1¤4
turn30
+1¤4
turnÐ
Crankshaft Main Bearing
Cap Cross Bolts (3.8L)61 45 Ð
Crankshaft Oil Seal
Retainer RearÐBolts12 Ð 105
Crankshaft DamperÐBolt 54 40 Ð
Cylinder Block Drain
Plugs20 15 Ð
Cylinder HeadÐBolts (Refer to 9 - ENGINE/
CYLINDER HEAD -
INSTALLATION)
Cylinder Head CoverÐ
Bolts12 Ð 105
Flex Plate to Crankshaft 95 70 Ð
Engine Mounting (Refer to 9 - ENGINE/
ENGINE MOUNTING)
Exhaust ManifoldÐBolts 23 Ð 200
RSENGINE 3.3/3.8L9-95
ENGINE 3.3/3.8L (Continued)
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DESCRIPTION N´mFt.
Lbs.In.
Lbs.
Exhaust Crossover
PipeÐBolts54 40 Ð
Intake Manifold -
LowerÐBolts23 Ð 200
Intake Manifold - Lower
Gasket RetainerÐBolts12 Ð 105
Intake Manifold
UpperÐBolts12 Ð 105
Lifter Yoke RetainerÐ
Bolts12 Ð 105
Oil Filter Attaching Fitting 54 40 Ð
Oil Cooler Attaching
Fitting27 20 Ð
Oil Filter 20 15 Ð
Oil Filter AdapterÐBolts 28 Ð 250
Oil Gallery Plug 27 20 Ð
Oil PanÐBolts 12 Ð 105
Oil Pan DrainÐPlug 27 20 Ð
Oil Pressure Switch 23 Ð 200
Oil Pump Cover
PlateÐScrews12 Ð 105
Oil Pump Pick-up
TubeÐBolt28 Ð 250
Oil Dipstick HousingÐ
Bolts48 35 Ð
Rocker Arm ShaftÐBolts 23 Ð 200
Spark Plug 16 12 Ð
Timing Chain Case Cover
ÐM8 Bolt 27 20 Ð
ÐM10 Bolt 54 40 Ð
Water PumpÐBolts 12 Ð 105
Water Pump PulleyÐ
Bolts28 Ð 250SPECIAL TOOLS
3.3/3.8L ENGINE
Dolly 6135
Cradle 6710A
Adapter 6909A
Adapter 8444
9 - 96 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
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Adapter 6912
Puller 1026
Insert, Crankshaft 8450
Crankshaft Damper/Sprocket Installer 8452
Indicator, Cylinder Bore C-119
Tester - Valve Spring C-647
Compressor, Valve Spring In-vehicle 8453
Valve Spring Compressor Off-vehicle C-3422-D
RSENGINE 3.3/3.8L9-97
ENGINE 3.3/3.8L (Continued)
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Adapter, Valve Spring Compressor Off-vehicle 8464
Remover, Valve Tappet C-4129-A
Remover, Crankshaft Front Seal 6341A
Installer, Crankshaft Front Seal C-4992
Remover and Installer, Crankshaft Main Bearing
C-3059
Rear Crankshaft Oil Seal Installer 6926
Oil Pressure Gauge C-3292
Adapter 8406
Cooling System Tester 7700
Combustion Leak Tester C-3685-A
9 - 98 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
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INSTALLATION
(1) Install air box into vehicle and onto the locat-
ing pin.
(2) Install bolt to hold air box to the upper radia-
tor cross member.
(3) Install the inlet hose to the throttle body.
(4) Connect the inlet air temperature sensor (Fig.
16).
(5) Connect the negative battery cable.
CYLINDER HEAD
DESCRIPTION
The aluminum cylinder heads (Fig. 17) are
designed to create high flow combustion chambers to
improve performance, while minimizing the change
to the burn rate in the chamber. The cylinder head
incorporates the combustion chamber. Two valves
per-cylinder are used with inserted valve seats and
guides. A multi-layer steel (MLS) type gasket is used
between the cylinder head and engine block.
OPERATION
The cylinder head closes the combustion chamber,
allowing the pistons to compress the fuel/air mixture
for ignition. The valves are actuated by the lobe pro-
files on the camshaft to open and close at specified
duration to either allow clean air in the combustion
chamber or the exhaust gases out; depending on the
stroke of the engine.
DIAGNOSIS AND TESTINGÐCYLINDER HEAD
GASKET
A cylinder head gasket leak can be located between
adjacent cylinders or between a cylinder and the
adjacent water jacket.
Possible indications of the cylinder head gasket
leaking between adjacent cylinders are:
²Loss of engine power
²Engine misfiring
²Poor fuel economy
Possible indications of the cylinder head gasket
leaking between a cylinder and an adjacent water
jacket are:
²Engine overheating
²Loss of coolant
²Excessive steam (white smoke) emitting from
exhaust
²Coolant foaming
CYLINDER-TO-CYLINDER LEAKAGE TEST
To determine if an engine cylinder head gasket is
leaking between adjacent cylinders, follow the proce-
dures in Cylinder Compression Pressure Test (Refer
to 9 - ENGINE - DIAGNOSIS AND TESTING). An
engine cylinder head gasket leaking between adja-
cent cylinders will result in approximately a 50±70%
reduction in compression pressure.
CYLINDER-TO-WATER JACKET LEAKAGE TEST
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING WITH COOLANT PRES-
SURE CAP REMOVED.
VISUAL TEST METHOD
With the engine cool, remove the coolant pressure
cap. Start the engine and allow it to warm up until
thermostat opens.
If a large combustion/compression pressure leak
exists, bubbles will be visible in the coolant.
COOLING SYSTEM TESTER METHOD
WARNING: WITH COOLING SYSTEM TESTER IN
PLACE, PRESSURE WILL BUILD UP FAST. EXCES-
SIVE PRESSURE BUILT UP, BY CONTINUOUS
ENGINE OPERATION, MUST BE RELEASED TO A
SAFE PRESSURE POINT. NEVER PERMIT PRES-
SURE TO EXCEED 138 kPa (20 psi).
Install Cooling System Tester 7700 or equivalent to
pressure cap neck. Start the engine and observe the
tester's pressure gauge. If gauge pulsates with every
power stroke of a cylinder a combustion pressure
leak is evident.
CHEMICAL TEST METHOD
Combustion leaks into the cooling system can also
be checked by using Bloc-Chek Kit C-3685-A or
equivalent. Perform test following the procedures
supplied with the tool kit.
REMOVAL - CYLINDER HEAD
(1) Drain the cooling system. (Refer to 7 - COOL-
ING - STANDARD PROCEDURE)
(2) Disconnect negative cable from battery.
(3) Remove upper and lower intake manifolds.
(Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANI-
FOLD - REMOVAL)
WARNING: INTAKE MANIFOLD GASKET IS MADE
OF VERY THIN METAL AND MAY CAUSE PER-
SONAL INJURY, HANDLE WITH CARE.
9 - 100 ENGINE 3.3/3.8LRS
AIR CLEANER HOUSING (Continued)
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(4) Remove the cylinder head covers. (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL)
(5) Remove the spark plugs from cylinder head.
(6) Remove the dipstick and tube (Fig. 18).
(7) Remove exhaust manifold(s). (Refer to 9 -
ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
REMOVAL)
(8) Remove rocker arm and shaft assemblies.(Refer
to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS -
REMOVAL) Remove push rods andmark positions
to ensure installation in original locations.
(9) Remove the eight head bolts from each cylinder
head and remove cylinder heads (Fig. 22).
CLEANING
To ensure engine gasket sealing, proper surface
preparation must be performed, especially with the
use of aluminum engine components and multi-layer
steel cylinder head gaskets.NOTE: Multi-Layer Steel (MLS) head gaskets require
a scratch free sealing surface.
Remove all gasket material from cylinder head and
block (Refer to 9 - ENGINE - STANDARD PROCE-
DURE). Be careful not to gouge or scratch the alumi-
num head sealing surface.
Clean all engine oil passages.
INSPECTION
(1) Before cleaning, check for leaks, damage and
cracks.
(2) Clean cylinder head and oil passages.
(3) Check cylinder head for flatness (Fig. 19).
(4) Cylinder head must be flat within:
²Standard dimension = less than 0.05 mm (0.002
inch.)
²Service Limit = 0.2 mm (0.008 inch.)
²Grinding Limit = Maximum of 0.2 mm (0.008
inch.) is permitted.
Fig. 17 Cylinder Head and Components
1 - VALVE LOCKS 5 - SPRING SEATS
2 - RETAINERS 6 - CYLINDER HEAD
3 - VALVE SPRINGS 7 - VALVE - EXHAUST
4 - VALVE STEM SEALS 8 - VALVE - INTAKE
RSENGINE 3.3/3.8L9 - 101
CYLINDER HEAD (Continued)
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