engine oil DODGE RAM 2003 Service Repair Manual
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Page 1487 of 2895

DESCRIPTION SPECIFICATION
(0.187 - 0.193 in.)
Groove #3 3.996 - 4.177 mm
(0.157 - 0.164 in.)
Weight 582 - 586 grams
(20.53 - 20.67 oz.)
PISTON PINS
Clearance in Piston 0.006 - 0.019 mm
(0.00023 - 0.00074 in.)
Diameter 25.007 - 25.015 mm
(0.9845 - 0.9848 in.)
End Play NONE
Length 67.8 - 68.3 mm
(2.67 - 2.69 in.)
PISTON RINGS
Ring Gap
Compression Ring (Top) 0.30 - 0.55 mm
(0.012 - 0.022 in.)
Compression Ring (2nd) 0.55 - 0.80 mm
(0.022 - 0.031 in.)
Oil Control (Steel Rails) 0.381 - 1.397 mm
(0.015 - 0.055 in.)
Ring Side Clearance
Compression Rings 0.040 - 0.085 mm
(0.0016 - 0.0033 in.)
Oil Ring (Steel Rails) 0.05 - 0.21 mm
MAX (0.002 - 0.008 in.)
Ring Width
Compression rings 1.530 - 1.555 mm
(0.060 - 0.061 in.)
Oil Ring (Steel Rails)
Max.0.447 - 0.473 mm
(0.018 - 0.019 in.)
VALVE TIMING
Exhaust Valve
Closes (ATDC) 33É
Opens (BBDC) 56É
Duration 269ÉDESCRIPTION SPECIFICATION
Intake Valve
Closes (ATDC) 62É
Opens (BBDC) 7É
Duration 249É
Valve Overlap 41É
OVERSIZE AND UNDERSIZE ENGINE
COMPONENT MARKINGS CHART
OS-US Item Identification Location of
Identification
U/S Crankshaft R or M M-2-3
ect.Milled flat on
.025 MM (indicating No.
2 andNo. three
(.001 in.) 3 main bearing crankshaft
journal) and/or counter-
weight.
R-1-4 ect.
(indicating No.
1 and
4 connecting
rod
journal)
O/S Cylinder A Following
.508 mm Bores engine serial
(.020 in.) number.
O/S TappetsL3/89
.203 mm diamond
(.008 in.) -shaped
stamp Top
pad
Ð Front of
engine and
flat
ground on
outside
surface
of each O/S
tappet bore.
O/S Valve
StemsX Milled pad
9 - 238 ENGINE - 5.9LDR
ENGINE - 5.9L (Continued)
Page 1488 of 2895

OS-US Item Identification Location of
.127 mm adjacent to
two
(.005 in.) 3/89tapped
holes on
each
end of
cylinder
head.
TORQUE
TORQUE CHART 5.9L ENGINE
DESCRIPTION N´m Ft.
Lbs.In.
Lbs.
Camshaft Sprocket Bolt 68 50 Ð
Camshaft Thrust Plate Bolts 24 Ð 210
Timing Chain Case Cover
Bolts41 30 Ð
Connecting Rod Cap Bolts 61 45 Ð
Main Bearing Cap Bolts 115 85 Ð
Crankshaft Pulley Bolts 24 Ð 210
Cylinder Head Bolts
Step 1 68 50 Ð
Step 2 143 105 Ð
Cylinder Head Cover Bolts 11 Ð 95
Engine Support Bracket to
Block Bolts (4WD)41 30 Ð
Exhaust Manifold to Cylinder
Head Bolts/Nuts34 25 Ð
Flywheel Bolts 75 55 Ð
Front Insulator Through
bolt/nut95 70 Ð
Front Insulator to Support
Bracket
Stud Nut (4WD) 41 30 Ð
Through Bolt/Nut (4WD) 102 75 Ð
Front Insulator to Block Bolts
(2WD)95 70 Ð
Generator Mounting Bolt 41 30 Ð
Intake Manifold Bolts Refer to Procedure
Oil Pan Bolts 24 Ð 215
Oil Pan Drain Plug 34 25 Ð
Oil Pump Attaching Bolts 41 30 Ð
Oil Pump Cover Bolts 11 Ð 95
DESCRIPTION N´m Ft.
Lbs.In.
Lbs.
Rear Insulator to Bracket
Through-Bolt (2WD)68 50 Ð
Rear Insulator to
Crossmember Support
Bracket Nut (2WD)41 30 Ð
Rear Insulator to
Crossmember Nuts (4WD)68 50 Ð
Rear Insulator to
Transmission Bolts (4WD)68 50 Ð
Rear Insulator Bracket Bolts
(4WD Automatic)68 50 Ð
Rear Support Bracket to
Crossmember Flange Nuts41 30 Ð
Rear Support Plate to
Transfer Case Bolts41 30 Ð
Rocker Arm Bolts 28 21 Ð
Spark Plugs 41 30 Ð
Starter Motor Mounting Bolts 68 50 Ð
Thermostat Housing Bolts 25 Ð 225
Throttle Body Bolts 23 Ð 200
Torque Converter Drive Plate
Bolts31 Ð 270
Transfer Case to Insulator
Mounting Plate Nuts204 105 Ð
Transmission Support Bracket
Bolts (2WD)68 50 Ð
Vibration Damper Bolt 244 180 Ð
Water Pump to Timing Chain
Case Cover Bolts41 30 Ð
DRENGINE - 5.9L 9 - 239
ENGINE - 5.9L (Continued)
Page 1489 of 2895

SPECIAL TOOLS
5.9L ENGINE
Oil Pressure Gauge C-3292
Engine Support Fixture C-3487±A
Valve Spring Compressor MD-998772±A
Adaptor 6633
Adaptor 6716A
Valve Guide Sleeve C-3973
Dial Indicator C-3339
Puller C-3688
Puller 1026
Crankshaft Damper Removal Insert 8513
9 - 240 ENGINE - 5.9LDR
ENGINE - 5.9L (Continued)
Page 1490 of 2895

Front Oil Seal Installer 6635
Cam Bearing Remover/Installer C3132±A
Camshaft Holder C-3509
Distributor Bushing Puller C-3052
Distributor Bushing Driver/Burnisher C-3053
Piston Ring Compressor C-385
Crankshaft Main Bearing Remover C-3059
Cylinder Bore Gauge C-119
Pressure Tester Kit 7700
Bloc±Check±Kit C-3685±A
ENGINE SUPPORT FIXTURE 8534
DRENGINE - 5.9L 9 - 241
ENGINE - 5.9L (Continued)
Page 1493 of 2895

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
(1) Disconnect the battery negative cable.
(2) Drain cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(3) Remove the air cleaner resonator and duct
work.
(4) Remove the intake manifold-to-generator
bracket support rod. Remove the generator.
(5) Remove closed crankcase ventilation system.
(6) Disconnect the evaporation control system.
(7) Perform the Fuel System Pressure Release pro-
cedure (Refer to 14 - FUEL SYSTEM/FUEL DELIV-
ERY - STANDARD PROCEDURE). Disconnect the
fuel supply line (Refer to 14 - FUEL SYSTEM/FUEL
DELIVERY/QUICK CONNECT FITTING - STAN-
DARD PROCEDURE).
(8) Disconnect accelerator linkage and if so
equipped, the speed control and transmission kick-
down cables.
(9) Remove distributor cap and wires.
(10) Disconnect the coil wires.
(11) Disconnect heat indicator sending unit wire.
(12) Disconnect heater hoses and bypass hose.
(13) Remove the master cylinder and booster
assembly. Refer to section 5 brakes.
(14) Remove cylinder head covers and gaskets
(Refer to 9 - ENGINE/CYLINDER HEAD/CYLIN-
DER HEAD COVER(S) - REMOVAL).
(15) Remove intake manifold (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
REMOVAL) and throttle body as an assembly. Dis-
card the flange side gaskets and the front and rear
cross-over gaskets.(16) Remove exhaust manifolds (Refer to 9 -
ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
REMOVAL).
(17) Remove rocker arm assemblies and push rods.
Identify to ensure installation in original locations.
(18) Remove the head bolts from each cylinder
head and remove cylinder heads. Discard the cylin-
der head gasket.
(19) Remove spark plugs.
CLEANING
Clean all surfaces of cylinder block and cylinder
heads.
Clean cylinder block front and rear gasket surfaces
using a suitable solvent.
INSPECTION
Inspect all surfaces with a straightedge if there is
any reason to suspect leakage. If out-of-flatness
exceeds 0.00075mm/mm (0.0001in/in.) times the span
length in any direction, either replace head or lightly
machine the head surface.
FOR EXAMPLE:ÐA 305 mm (12 in.) span is
0.102 mm (0.004 in.) out-of-flat. The allowable out-of-
flat is 305 x 0.00075 (12 x 0.00075) equals 0.23 mm
(0.009 in.). This amount of out-of-flat is acceptable.
The cylinder head surface finish should be
1.78-3.00 microns (70-125 microinches).
Inspect push rods. Replace worn or bent rods.
INSTALLATION
(1) Clean all surfaces of cylinder block and cylin-
der heads.
(2) Clean cylinder block front and rear gasket sur-
faces using a suitable solvent.
(3) Position new cylinder head gaskets onto the
cylinder block.
(4) Position cylinder heads onto head gaskets and
cylinder block.
(5) Starting at top center, tighten all cylinder head
bolts, in sequence (Fig. 8).
CAUTION: When tightening the rocker arm bolts,
make sure the piston in that cylinder is NOT at
TDC. Contact between the valves and piston could
occur.
(6) Install push rods and rocker arm assemblies in
their original position. Tighten the bolts to 28 N´m
(21 ft. lbs.) torque.
(7) Install the intake manifold (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
INSTALLATION) and throttle body assembly.
(8) Install exhaust manifolds (Refer to 9 -
ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
INSTALLATION).
9 - 244 ENGINE - 5.9LDR
CYLINDER HEAD (Continued)
Page 1494 of 2895

(9) If required, adjust spark plugs to specifications.
Install the plugs and tighten to 41 N´m (30 ft. lbs.)
torque.
(10) Install coil wire.
(11) Connect heat indicator sending unit wire.
(12) Connect the heater hoses and bypass hose.
(13) Install distributor cap and wires.
(14) Connect the accelerator linkage and if so
equipped, the speed control and transmission kick-
down cables.
(15) Install the fuel supply line (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY/QUICK CON-
NECT FITTING - STANDARD PROCEDURE).
(16) Install the generator and drive belt (Refer to 7
- COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION). Tighten generator mounting bolt
to 41 N´m (30 ft. lbs.) torque. Tighten the adjusting
strap bolt to 23 N´m (200 in. lbs.) torque.
(17) Install the intake manifold-to-generator
bracket support rod. Tighten the bolts.
(18) Place the cylinder head cover gaskets in posi-
tion and install cylinder head covers (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION).
(19) Install closed crankcase ventilation system.
(20) Connect the evaporation control system.
(21) Reinstall the master cylinder and booster
assembly. Refer to section 5 brakes.
(22) Install the air cleaner.
(23) Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(24) Connect the negative cable to the battery.
(25) Start engine check for leaks.
CYLINDER HEAD COVER(S)
REMOVAL
NOTE: A steel backed silicon gasket is used with
the cylinder head cover (Fig. 9). This gasket can be
used again.
(1) Disconnect the negative cable from the battery.
(2) Disconnect the spark plug wires form the spark
plugs and set aside.
(3) Disconnect closed ventilation system and evap-
oration control system from cylinder head cover.
(4) Remove cylinder head cover and gasket.
CLEANING
Clean cylinder head cover gasket surface.
Clean head rail, if necessary.
INSPECTION
Inspect cover for distortion and straighten, if nec-
essary.
Check the gasket for use in head cover installation.
If damaged, use a new gasket.
INSTALLATION
(1) The cylinder head cover gasket can be used
again. Install the gasket onto the head rail.
(2) Position the cylinder head cover onto the gas-
ket. Tighten the bolts to 11 N´m (95 in. lbs.) torque.
(3) Install closed crankcase ventilation system and
evaporation control system.
(4) Connect the spark plug wires to the spark
plugs.
(5) Connect the negative cable to the battery.
Fig. 8 Cylinder Head Bolt Tightening Sequence
Fig. 9 Cylinder Head Cover Gasket
1 - CYLINDER HEAD COVER GASKET
DRENGINE - 5.9L 9 - 245
CYLINDER HEAD (Continued)
Page 1498 of 2895

(3) Measure valve stems for wear. If wear exceeds
0.051 mm (0.002 inch), replace the valve.
(4) Coat valve stems with lubrication oil and insert
them in cylinder head.
(5) If valves or seats are reground, check valve
stem height. If valve is too long, replace cylinder
head.
(6) Install new seals on all valve guides. Install
valve springs and valve retainers.
(7) Compress valve springs with Valve Spring
Compressor Tool MD-998772A and adapter 6716A,
install locks and release tool. If valves and/or seats
are ground, measure the installed height of springs.
Make sure the measurement is taken from bottom of
spring seat in cylinder head to the bottom surface of
spring retainer. If spacers are installed, measure
from the top of spacer. If height is greater than 42.86
mm (1-11/16 inches), install a 1.587 mm (1/16 inch)
spacer in head counterbore. This should bring spring
height back to normal 41.27 to 42.86 mm (1-5/8 to
1-11/16 inch).
(8) Install cylinder head (Refer to 9 - ENGINE/
CYLINDER HEAD - INSTALLATION).
ROCKER ARM / ADJUSTER
ASSEMBLY
REMOVAL
(1) Remove cylinder head cover and gasket (Refer
to 9 - ENGINE/CYLINDER HEAD/CYLINDER
HEAD COVER(S) - REMOVAL).
(2) Remove the rocker arm bolts and pivots (Fig.
18). Place them on a bench in the same order as
removed.(3) Remove the push rods and place them on a
bench in the same order as removed.
INSTALLATION
(1) Rotate the crankshaft until the ªV8º mark lines
up with the TDC mark on the timing chain case
cover. This mark is located 147É ATDC from the No.1
firing position.
(2) Install the push rods in the same order as
removed.
(3) Install rocker arm and pivot assemblies in the
same order as removed. Tighten the rocker arm bolts
to 28 N´m (21 ft. lbs.) torque.
CAUTION: DO NOT rotate or crank the engine dur-
ing or immediately after rocker arm installation.
Allow the hydraulic roller tappets adequate time to
bleed down (about 5 minutes).
(4) Install cylinder head cover (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION).
ENGINE BLOCK
CLEANING
Clean cylinder block thoroughly and check all core
hole plugs for evidence of leakage.
INSPECTION
Examine block for cracks or fractures.
The cylinder walls should be checked for out-of-
round and taper. Refer to Honing Cylinder Bores in
the Service Procedures portion of this Section.
Inspect the oil line plug, the oil line plug is located
in the vertical passage at the rear of the block
between the oil-to-filter and oil-from-filter passages
(Fig. 19). Improper installation or missing plug could
cause erratic, low, or no oil pressure.
The oil plug must come out the bottom. Use flat
dowel, down the oil pressure sending unit hole from
the top, to remove oil plug.
Fig. 17 Measuring Valve Guide Wear
1 - VALVE
2 - SPECIAL TOOL C-3339
Fig. 18 Rocker Arms
1 - ROCKER ARMS
2 - CYLINDER HEAD
DRENGINE - 5.9L 9 - 249
INTAKE/EXHAUST VALVES & SEATS (Continued)
Page 1499 of 2895

(1) Remove oil pressure sending unit from back of
block.
(2) Insert a 3.175 mm (1/8 in.) finish wire, or
equivalent, into passage.
(3) Plug should be 190.0 to 195.2 mm (7-1/2 to
7-11/16 in.) from machined surface of block (Fig. 19).
If plug is too high, use a suitable flat dowel to posi-
tion properly.
(4) If plug is too low, remove oil pan and No. 4
main bearing cap. Use suitable flat dowel to position
properly. Coat outside diameter of plug with Mopart
Stud and Bearing Mount Adhesive. Plug should be
54.0 to 57.7 mm (2-1/8 to 2-5/16 in.) from bottom of
the block.CAMSHAFT & BEARINGS (IN
BLOCK)
REMOVALÐCAMSHAFT
NOTE: The camshaft has an integral oil pump and
distributor drive gear (Fig. 20).
(1) Remove the radiator (Refer to 7 - COOLING/
ENGINE/RADIATOR - REMOVAL).
(2) Remove the A/C Condenser (if equipped)
(3) Remove the engine cover.
(4) Remove intake manifold (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
(5) Remove cylinder head covers (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL).
(6) Remove timing case cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL) and timing chain (Refer to 9
- ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - REMOVAL).
(7) Remove rocker arms.
(8) Remove push rods and tappets. Identify each
part so it can be installed in its original location.
(9) Remove distributor and lift out the oil pump
and distributor drive shaft.
(10) Remove camshaft thrust plate, note location of
oil tab (Fig. 21).
(11) Install a long bolt into front of camshaft to aid
in removal of the camshaft. Remove camshaft, being
careful not to damage cam bearings with the cam
lobes.
INSTALLATIONÐCAMSHAFT
(1) Lubricate camshaft lobes and camshaft bearing
journals and insert the camshaft to within 51 mm (2
inches) of its final position in cylinder block.
(2) Install Camshaft Holder Tool C-3509 with
tongue back of distributor drive gear (Fig. 22).
Fig. 19 Oil Line Plug
1 - RIGHT OIL GALLERY
2 - CYLINDER BLOCK
3 - OIL FROM FILTER TO SYSTEM
4 - OIL TO FILTER
5 - FROM OIL PUMP
6 - CRANKSHAFT
7 - PLUG
Fig. 20 Camshaft and Sprocket Assembly
1 - THRUST PLATE
2 - OIL PUMP AND DISTRIBUTOR DRIVE GEAR INTEGRAL WITH
CAMSHAFT
3 - CAMSHAFT SPROCKET
9 - 250 ENGINE - 5.9LDR
ENGINE BLOCK (Continued)
Page 1500 of 2895

(3) Hold tool in position with a distributor lock-
plate bolt. This tool will restrict camshaft from being
pushed in too far and prevent knocking out the welch
plug in rear of cylinder block.Tool should remain
installed until the camshaft and crankshaft
sprockets and timing chain have been installed.
(4) Install camshaft thrust plate and chain oil tab.
Make sure tang enters lower right hole in
thrust plate.Tighten bolts to 24 N´m (210 in. lbs.)
torque. Top edge of tab should be flat against thrust
plate in order to catch oil for chain lubrication.(5) Install timing chain and gears (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - INSTALLATION).
(6) Measure camshaft end play (Refer to 9 -
ENGINE - SPECIFICATIONS). If not within limits
install a new thrust plate.
(7) Each tappet reused must be installed in the
same position from which it was removed.When
camshaft is replaced, all of the tappets must be
replaced.
(8) Install distributor and distributor drive shaft.
(9) Install push rods and tappets.
(10) Install rocker arms.
(11) Install timing case cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
(12) Install cylinder head covers (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION).
(13) Install intake manifold (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD - INSTALLA-
TION).
(14) Install the engine cover.
(15) Install the A/C Condenser (if equipped)
(16) Install the radiator (Refer to 7 - COOLING/
ENGINE/RADIATOR - INSTALLATION).
(17) Start engine check for leaks.
CONNECTING ROD BEARINGS
STANDARD PROCEDURE - CONNECTING ROD
BEARING FITTING
Fit all rods on a bank until completed. DO NOT
alternate from one bank to another, because connect-
ing rods and pistons are not interchangeable from
one bank to another.
The bearing caps are not interchangeable and
should be marked at removal to ensure correct
assembly.
Each bearing cap has a small V-groove across the
parting face. When installing the lower bearing shell,
be certain that the V-groove in the shell is in line
with the V-groove in the cap. This provides lubrica-
tion of the cylinder wall in the opposite bank.
The bearing shells must be installed so that the
tangs are in the machined grooves in the rods and
caps.
Limits of taper or out-of-round on any crankshaft
journals should be held to 0.025 mm (0.001 in.).
Bearings are available in 0.025 mm (0.001 in.), 0.051
mm (0.002 in.), 0.076 mm (0.003 in.), 0.254 mm
(0.010 in.) and 0.305 mm (0.012 in.) undersize.
Install the bearings in pairs. DO NOT use a new
bearing half with an old bearing half. DO NOT
file the rods or bearing caps.
Fig. 21 Timing Chain Oil
1 - THRUST PLATE FRONT SIDE
2 - CHAIN OIL TAB
3 - THRUST PLATE REAR SIDE
Fig. 22 Camshaft Holding Tool C-3509 (Installed
Position)
1 - SPECIAL TOOL C-3509
2 - DRIVE GEAR
3 - DISTRIBUTOR LOCK BOLT
DRENGINE - 5.9L 9 - 251
CAMSHAFT & BEARINGS (IN BLOCK) (Continued)
Page 1501 of 2895

CRANKSHAFT
DESCRIPTION
The crankshaft (Fig. 23) is of a cast nodular steel
splayed type design, with five main bearing journal-
s.The crankshaft is located at the bottom of the
engine block and is held in place with five main bear-
ing caps. The number 3 counterweight is the location
for journal size identification.
OPERATION
The crankshaft transfers force generated by com-
bustion within the cylinder bores to the flywheel or
flexplate.
REMOVAL
NOTE: This procedure can be done in vehicle. How-
ever the transmission must be removed first.
(1) If crankshaft is to be removed while engine is
in vehicle remove the transmission. Refer to 21 -
TRANSMISSION/TRANSAXLE.
(2) Remove the oil pan (Refer to 9 - ENGINE/LU-
BRICATION/OIL PAN - REMOVAL).
(3) Remove the oil pump from the rear main bear-
ing cap (Refer to 9 - ENGINE/LUBRICATION/OIL
PUMP - REMOVAL).
(4) Remove the vibration damper (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL).
(5) Remove the timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL).
(6) Identify rod bearing caps before removal.
Remove rod bearing caps with bearings.CAUTION: Support crankshaft before removing
main bearing caps. failure to do so will allow the
crankshaft to fall damaging the crankshaft.
(7) Using a suitable jack, support the crankshaft.
(8) Identify main bearing caps before removal.
Remove main bearing caps and bearings one at a
time.
(9) Lower the crankshaft out of the block.
(10) Remove and discard the crankshaft rear oil
seals.
(11) Remove and discard the front crankshaft oil
seal.
INSTALLATION
(1) Clean Gasket Maker residue and sealant from
the cylinder block and rear cap mating surface. Do
this before applying the MopartGasket Maker and
the installation of rear cap.
(2) Lightly oil the new upper seal lips with engine
oil.
(3) Install the new upper rear bearing oil seal with
the white paint facing towards the rear of the engine.
(4) Position the crankshaft into the cylinder block.
(5) Lightly oil the new lower seal lips with engine
oil.
(6) Install the new lower rear bearing oil seal into
the bearing cap with the white paint facing towards
the rear of the engine.
(7) Apply 5 mm (0.20 in) drop of MopartGasket
Maker, or equivalent, on each side of the rear main
bearing cap (Fig. 24). DO NOT over apply sealant or
allow the sealant to contact the rubber seal. Assem-
ble bearing cap to cylinder block immediately after
sealant application.
Fig. 23 Crankshaft with Journal Size Identification
Fig. 24 Sealant Application to Bearing Cap
1 - MOPARTGASKET MAKER 5 mm (0.20 IN.) ON BOTH SIDES
OF REAR MAIN CAP
9 - 252 ENGINE - 5.9LDR