lock CHRYSLER CARAVAN 2002 Service Manual
[x] Cancel search | Manufacturer: CHRYSLER, Model Year: 2002, Model line: CARAVAN, Model: CHRYSLER CARAVAN 2002Pages: 2399, PDF Size: 57.96 MB
Page 1295 of 2399
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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Page 1296 of 2399
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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Page 1301 of 2399
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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Page 1302 of 2399
(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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Page 1303 of 2399
CAUTION: 0.20 mm (0.008 in.) MAX is a combined
total dimension of the stock removal limit from cyl-
inder head and block top surface (Deck) together.
INSTALLATION - CYLINDER HEAD
(1) Clean all sealing surfaces of engine block and
cylinder heads. (Refer to 9 - ENGINE - STANDARD
PROCEDURE)(2) Position new gasket(s) on engine block (Fig.
20). The left bank gasket is identified with the ªLº
stamped in the exposed area of the gasket located at
front of engine (shown in (Fig. 20)). The right bank
gasket is identified with a ªRº stamped in the
exposed area of the gasket also, but is located at the
rear of the engine.
(3)The cylinder head bolts are torqued using
the torque yield method, they should be exam-
ined BEFORE reuse. If the threads are necked
down, the bolts must be replaced(Fig. 21).
(4) Necking can be checked by holding a scale or
straight edge against the threads. If all the threads
do not contact the scale the bolt should be replaced.
(5) Tighten the cylinder head bolts 1±8 in the
sequence shown in (Fig. 22). Using the 4 step torque
turn method, tighten according to the following val-
ues:
²Step 1: Bolts1±8to61N´m(45ft.lbs.)
Fig. 18 DIPSTICK & TUBE
1 - DIPSTICK
2 - BOLT
3 - TUBE
Fig. 19 Checking Cylinder Head FlatnessÐTypical
Fig. 20 Head Gasket Installation
1 - CYLINDER HEAD GASKET
2 - LOCATION IDENTIFICATION (L = LEFT BANK, R = RIGHT
BANK)
Fig. 21 Checking Bolts for Stretching (Necking)
1 - STRETCHED BOLT
2 - THREADS ARE NOT STRAIGHT ON LINE
3 - THREADS ARE STRAIGHT ON LINE
4 - UNSTRETCHED BOLT
9 - 102 ENGINE 3.3/3.8LRS
CYLINDER HEAD (Continued)
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Page 1306 of 2399
CYLINDER HEAD COVER -
LEFT
REMOVAL
(1) Disconnect spark plug wires from spark plugs.
(2) Disconnect crankcase vent hose from cylinder
head cover.
(3) Remove cylinder head cover bolts.
(4) Remove cylinder head cover and gasket.
INSTALLATION
(1) Clean cylinder head and cover mating surfaces.
Inspect cylinder head cover surface for flatness.
Replace gasket as necessary.
(2) Assemble gasket to cylinder cover by inserting
the fasteners through each bolt hole on cover and
gasket (Fig. 26).
(3) Install the cylinder head cover and bolts (Fig.
27).
(4) Tighten cylinder head cover bolts to 12 N´m
(105 in. lbs.) (Fig. 27).
(5) Connect crankcase vent hose.
(6) Connect spark plug wires to spark plugs.
INTAKE/EXHAUST VALVES &
SEATS
DESCRIPTION
The valves have chrome plated valve stems with
four-bead lock grooves. The valve stem seals are
made of Viton rubber.
OPERATION
The two valves per cylinder are opened using
hydraulic lifters, push rods, and rocker arms.
STANDARD PROCEDURE - REFACING VALVES
AND VALVE SEATS
The intake and exhaust valves and seats are
machined to specific angles (Fig. 28).
VALVES
(1) Inspect the remaining margin after the valves
are refaced (Fig. 29). (Refer to 9 - ENGINE - SPEC-
IFICATIONS)
VALVE SEATS
CAUTION: Remove metal from valve seat only. Do
not remove material from cylinder head (Fig. 30).
(1)
When refacing valve seats, it is important that
the correct size valve guide pilot be used for reseating
stones. A true and complete surface must be obtained.
Fig. 28 Valve Face and Seat
1 - SEAT WIDTH
2 - FACE ANGLE
3 - SEAT ANGLE
4 - SEAT CONTACT AREA
Fig. 29 Valve Margin
1 - VALVE FACE
2 - VALVE MARGIN
Fig. 30 Refacing Valve Seats
1 - REFACING STONE MUST NOT CUT INTO CYLINDER HEAD
2-STONE
3 - PILOT
4 - SEAT
RSENGINE 3.3/3.8L9 - 105
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Page 1307 of 2399
(2) Measure the concentricity of valve seat using
dial indicator (Fig. 31). Total runout should not
exceed 0.051 mm (0.002 in.) total indicator reading.
(3) Inspect the valve seat using Prussian blue to
determine where the valve contacts the seat. To do
this, coat valve seatLIGHTLYwith Prussian blue
then set valve in place. Rotate the valve with light
pressure. If the blue is transferred to the center of
valve face, contact is satisfactory. If the blue is trans-
ferred to top edge of valve face, lower valve seat with
a 15 degree stone. If the blue is transferred to the
bottom edge of valve face raise valve seat with a 65
degrees stone.
NOTE: Valve seats which are worn or burned can
be reworked, provided that correct angle and seat
width are maintained. Otherwise cylinder head must
be replaced.
(4) When seat is properly positioned the width of
intake and exhaust seats should be 1.50±2.00 mm
(0.059±0.078 in.) (Fig. 28).
(5) After grinding the valve seats or faces, install
the valve in cylinder head and check valve installed
height by measuring from valve tip to spring seat
(Fig. 32). Remove valve from cylinder head and grind
valve tip until within specifications. Check valve tip
for scoring. The tip chamfer should be reground (if
necessary) to prevent seal damage when the valve is
installed.
(6) Check the valve spring installed height after
refacing the valve and seat (Fig. 32).If valves
and/or seats are reground, measure the
installed height of springs (Fig. 32), make sure
measurements are taken from top of spring
seat to the bottom surface of spring retainer. If
height is greater than specifications, install a0.794 mm (0.0312 in.) spacer in head counter-
bore to bring spring height back within specifi-
cations.
REMOVAL
(1) With cylinder head removed, compress valve
springs using Valve Spring Compressor Tool
C-3422-D with adapter 8464 (Refer to 9 - ENGINE -
SPECIAL TOOLS).
(2) Remove valve retaining locks.
(3) Slowly release valve spring compressor.
Remove valve spring retainer, valve spring, and valve
stem seal.
(4) Before removing valves,remove any burrs
from valve stem lock grooves to prevent dam-
age to the valve guides.Identify valves to insure
installation in original location.
CLEANING
(1) Clean all valves thoroughly and discard
burned, warped and cracked valves.
INSPECTION
VALVES
(1) Clean and inspect valves thoroughly. Replace
burned, warped and cracked valves.
(2) Measure valve stems for wear (Fig. 33). For
valve specifications, (Refer to 9 - ENGINE - SPECI-
FICATIONS).
NOTE: Valve stems are chrome plated and should
not be polished (Fig. 33).
Fig. 31 Measurement of Valve Seat Runout
1 - DIAL INDICATOR
Fig. 32 Checking Valve and Spring Installed Height
1 - SPRING RETAINER
2 - VALVE INSTALLED HEIGHT* - 48.1±49.7 mm (1.89±1.95 in.)
3 - CYINDER HEAD SURFACE
4 - SPRING INSTALLED HEIGHT* - 41.1±42.7 mm (1.61±1.68 in.)
*(MEASURED FROM TOP OF SPRING SEAT)
9 - 106 ENGINE 3.3/3.8LRS
INTAKE/EXHAUST VALVES & SEATS (Continued)
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Page 1308 of 2399
VALVE GUIDES
(1) Remove carbon and varnish deposits from
inside of valve guides with a reliable guide cleaner.
(2) Measure valve stem-to-guide clearance as fol-
lows:
(3) Install valve into cylinder head so it is 15 mm
(0.590 inch.) off the valve seat. A small piece of hose
may be used to hold valve in place.
(4) Attach dial indicator Tool C-3339 to cylinder
head and set it at right angle of valve stem being
measured (Fig. 34).
(5) Move valve to and from the indicator. For cler-
ance specifications, (Refer to 9 - ENGINE - SPECIFI-
CATIONS).
NOTE: Replace cylinder head if stem-to-guide clear-
ance exceeds specifications, or if guide is loose in
cylinder head.
INSTALLATION
(1) Coat valve stems with clean engine oil and
insert them in cylinder head.
(2) Install valve spring seat on head (Fig. 36).
(3) Install new seals on all valve stems and over
valve guides (Fig. 36). Install valve springs and valve
retainers (Fig. 36).
(4) Install the valve springs. (Refer to 9 -
ENGINE/CYLINDER HEAD/VALVE SPRINGS -
INSTALLATION)
VALVE SPRINGS
DESCRIPTION
The valve springs are a bee-hive shaped design
(Fig. 35). The springs are seated on a steel washer on
the cylinder head with retainers and locks retaining
the springs (Fig. 36). The springs are installed with
the smaller diameter against spring retainer (Fig.
35).
OPERATION
The valve spring returns the valve against its seat
for a positive seal of the combustion chamber.
Fig. 33 Intake and Exhaust Valves
1 - MARGIN
2-FACE
3 - STEM
4 - VALVE SPRING RETAINER LOCK GROOVES
Fig. 34 Measuring Valve Guide Wear - Typical
Fig. 35 Valve Spring
1 - VALVE SPRING (TOP - SMALLER DIAMETER)
RSENGINE 3.3/3.8L9 - 107
INTAKE/EXHAUST VALVES & SEATS (Continued)
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Page 1309 of 2399
REMOVAL
REMOVAL - CYLINDER HEAD OFF
(1) With the cylinder head on a bench, position
Special Tool C-3422-D with 8464 Adapter on the
valve and spring retainer (Fig. 37).
(2) Compress the spring only enough to remove the
valve retainer locks.
(3) Slowly release the spring tension and remove
the valve spring and retainer.
(4) For removal of the valve stem seal (Refer to 9 -
ENGINE/CYLINDER HEAD/VALVE STEM SEALS -
REMOVAL).
REMOVAL - CYLINDER HEAD ON
(1) Disconnect negative cable from battery.
(2) Remove spark plug wires and all spark plugs.
(3) Remove cylinder head cover(s). (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL)(4) Remove rocker arms and shaft. (Refer to 9 -
ENGINE/CYLINDER HEAD/ROCKER ARMS -
REMOVAL)
(5) Rotate engine until the piston in the cylinder
bore requiring spring removal is at TDC.
(6) Install Special Tool 8453 to the cylinder head
(Fig. 38). Tighten the attaching bolts to 23 N´m (200
in. lbs.).
(7) Install a spark plug adapter in the spark plug
hole. Connect air hose that can supply 620.5±689 kPa
(90±100 psi) of air pressure to adapter. This is to
hold valves in place while servicing components.
(8) Locate the forcing screw and spring retainer
adapter assembly over the spring requiring removal
(Fig. 38).
(9) Slowly turn the forcing screw clockwise (com-
pressing the valve spring) until the valve keepers can
be removed.
(10) Turn forcing screw counterclockwise to relieve
spring tension. Remove retainer and valve spring.
Fig. 36 VALVE 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
9 - 108 ENGINE 3.3/3.8LRS
VALVE SPRINGS (Continued)
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Page 1310 of 2399
(11) Repeat procedure for each cylinder requiring
valve spring removal.
INSPECTION
Whenever valves have been removed for inspection,
reconditioning or replacement, valve springs should
be tested (Fig. 39).As an example;the compression
length of a spring to be tested is 38.00 mm (1.496
in.). Turn the table of Tool C-647 until surface is in
line with the 38.00 mm (1.496 in.) mark on the
threaded stud and the zero mark on the front. Placespring over stud on the table and lift compressing
lever to set tone device. Pull on torque wrench until
ping is heard. Take reading on torque wrench at this
instant. Multiply this reading by two. This will give
the spring load at test length. Fractional measure-
ments are indicated on the table for finer adjust-
ments. Refer to Engine Specifications to obtain
specified height and allowable tensions (Refer to 9 -
ENGINE - SPECIFICATIONS). Replace any springs
that do not meet specifications.
INSTALLATION
INSTALLATION - CYLINDER HEAD OFF
(1) If removed, install a new valve stem seal (Refer
to 9 - ENGINE/CYLINDER HEAD/VALVE STEM
SEALS - INSTALLATION).
(2) Position valve spring and retainer on spring
seat.
(3) Using Special Tool C-3422-D with 8464 Adapter
(Fig. 37), compress the spring only enough to install
the valve retainer locks. Install valve retainer locks.
(4) Slowly release the spring tension. Ensure the
retainer locks are seated properly.
INSTALLATION - CYLINDER HEAD ON
(1) The intake valve stem seals should be pushed
firmly and squarely over the valve guide using the
valve stem as guide.Do Not Forceseal against top
of guide. When installing the valve retainer locks,
compress the springonly enoughto install the
locks.
CAUTION: Do not pinch seal between retainer and
top of valve guide.
Fig. 37 VALVE SPRING - REMOVE/INSTALL
1 - SPECIAL TOOL C-3422-D SPRING COMPRESSOR
2 - SPECIAL TOOL 8464 ADAPTER
Fig. 38 VALVE SPRING - REMOVE/INSTALL (HEAD
ON)
1 - SPECIAL TOOL 8453
2 - BOLTS - SPECIAL TOOL ATTACHING
3 - AIR SUPPLY HOSE ADAPTER
Fig. 39 TESTING VALVE SPRING
1 - SPECIAL TOOL C-647
RSENGINE 3.3/3.8L9 - 109
VALVE SPRINGS (Continued)
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