2002 CHRYSLER CARAVAN weight

(4) Tighten the bolts to 27 N´m PLUS 1/4 turn (20
ft. lbs. PLUS 1/4 turn)Do not use a torque
wrench for last step.
(5) Using a feeler gauge, check connecting rod side
clearance (Fig. 45). Refer to clearance specifications
(Refer to 9 - ENGINE - SPECIFICATIONS).
CRANKSHAFT
DESCRIPTION
The crankshaft is made of nodular cast iron and
includes five main bearing journals and four connect-
ing rod journals (Fig. 46). The number three journal
is the location for the thrust bearing. The mains and
connecting rod journals have undercut fillet radiuses
that are rolled for added strength. To optimize bear-
ing loading, eight counterweights are used.
OPERATION
The crankshaft transfers force generated by com-
bustion within the cylinder to the flywheel or flex-
plate.
STANDARD PROCEDURE - CRANKSHAFT END
PLAY
(1) Using Dial Indicator C-3339 and Mounting
Post L-4438, attach to front of engine, locating probe
perpendicular on nose of crankshaft (Fig. 47).
(2) Move crankshaft all the way to the rear of its
travel.
(3) Zero the dial indicator.
(4) Move crankshaft all the way to the front and
read the dial indicator. Refer to Engine Specifica-
tions.
REMOVAL
NOTE: Crankshaft can not be removed when engine
is in vehicle.(1) Remove engine assembly from vehicle. (Refer to
9 - ENGINE - REMOVAL)
(2) Separate engine from transaxle.
(3) Remove flex plate and crankshaft rear oil seal.
(4) Mount engine on a repair stand.
(5) Drain engine oil and remove oil filter.
(6) Remove the oil pan. (Refer to 9 - ENGINE/LU-
BRICATION/OIL PAN - REMOVAL)
(7) Remove engine mount support bracket.
(8) Remove the crankshaft damper and timing belt
covers. (Refer to 9 - ENGINE/VALVE TIMING/TIM-
ING BELT / CHAIN COVER(S) - REMOVAL)
(9) Remove the timing belt. (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT/CHAIN AND
SPROCKETS - REMOVAL)
Fig. 45 Connecting Rod Side Clearance
Fig. 46 Crankshaft - Typical
1 - MAIN BEARING JOURNALS
2 - COUNTER BALANCE WEIGHTS
Fig. 47 CHECKING CRANKSHAFT END PLAY
9 - 38 ENGINE 2.4LRS
CONNECTING ROD BEARINGS (Continued)
ProCarManuals.com

(2) Make certain oil holes in block line up with oil
hole in bearings and bearing tabs seat in the block
tab slots.
CAUTION: Do not get oil on the bedplate mating
surface. It will affect the sealer ability to seal the
bedplate to cylinder block.
(3) Oil the bearings and journals. Install crank-
shaft.
CAUTION: Use only the specified anaerobic sealer
on the bedplate or damage may occur to the
engine.
(4) Apply 1.5 to 2.0 mm (0.059 to 0.078 in.) bead of
MopartBed Plate Sealant to cylinder block as shown
in (Fig. 51).
(5) Install lower main bearings into main bearing
cap/bedplate. Make certain the bearing tabs are
seated into the bedplate slots. Install the main bear-
ing/bedplate into engine block.
(6) Before installing the bolts the threads should
be oiled with clean engine oil, wipe off any excess oil.(7) Install main bearing bedplate to engine block
bolts 11, 17, and 20 finger tight. Tighten these bolts
down together until the bedplate contacts the cylin-
der block.
(8) To ensure correct thrust bearing alignment,
perform the following steps:
²Step 1: Rotate crankshaft until number 4 piston
is at TDC.
²Step 2: Move crankshaft rearward to limits of
travel.
²Step 3: Then, move crankshaft forward to limits
of travel.
²Step 4: Wedge an appropriate tool between the
rear of the cylinder block(NOT BED PLATE)and
the rear crankshaft counterweight. This will hold the
crankshaft in it's furthest forward position.
²Step 5: Install and tighten bolts (1±10) in
sequence shown in (Fig. 52) to 41 N´m (30 ft. lbs.).
²Step 6: Remove wedge tool used to hold crank-
shaft.
(9) Tighten bolts (1±10) again to 41 N´m (30 ft.
lbs.) in sequence shown in (Fig. 52).
CAUTION: Do Not use a torque wrench for the fol-
lowing step.
(10) Turn bolts (1±10) an additional 1/4 turn in
sequence shown in (Fig. 52).
(11) Install main bearing bedplate to engine block
bolts (11±20), and torque each bolt to 28 N´m (250 in.
lbs.) in sequence shown in (Fig. 52).
(12) Tighten bolts (11±20) again to 28 N´m (250 in.
lbs.) in sequence shown in (Fig. 52).
(13) After the main bearing bedplate is installed,
check the crankshaft turning torque. The turning
torque should not exceed 5.6 N´m (50 in. lbs.).
(14) Install connecting rod bearings and caps.Do
Not Reuse Connecting Rod Bolts.Torque connect-
ing rod bolts to 27 N´m (20 ft. lbs.) plus 1/4 turn.
(15) Install balance shafts and housing assembly.
(Refer to 9 - ENGINE/VALVE TIMING/BALANCE
SHAFT - INSTALLATION)
(16) Install the oil pump. (Refer to 9 - ENGINE/
LUBRICATION/OIL PUMP - INSTALLATION)
(17) Install cylinder head if it was removed (Refer
to 9 - ENGINE/CYLINDER HEAD - INSTALLA-
TION).
(18) Install the timing belt rear cover. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION)
(19) Install crankshaft sprocket (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - INSTALLATION).
(20) Install the timing belt. (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT/CHAIN AND
SPROCKETS - INSTALLATION)
Fig. 51 Bedplate Sealing
Fig. 52 Bedplate Bolt Torque Sequence
9 - 40 ENGINE 2.4LRS
CRANKSHAFT (Continued)
ProCarManuals.com

(6) Position the main bearing/bedplate onto the
engine block.
(7) Before installing bolts, lubricate the threads
with clean engine oil, wipe off any excess oil.
(8) Install main bearing bedplate to engine block
bolts 11, 17 and 20 finger tight. Tighten these bolts
down together until the bedplate contacts the cylin-
der block.
(9) To ensure correct thrust bearing alignment,
perform the following steps:
²Step 1: Rotate crankshaft until number 4 piston
is at TDC.
²Step 2: Move crankshaft rearward to limits of
travel.
²Step 3: Then, move crankshaft forward to limits
of travel.
²Step 4: Wedge an appropriate tool between the
rear of the cylinder block(NOT BED PLATE)and
the rear crankshaft counterweight. This will hold the
crankshaft in it's furthest forward position.
²Step 5: Install and tighten bolts (1±10) in
sequence shown in (Fig. 56) to 41 N´m (30 ft. lbs.).²Step 6: Remove wedge tool used to hold crank-
shaft.
(10) Tighten bolts (1±10) again to 41 N´m (30 ft.
lbs.) in sequence shown in (Fig. 56).
CAUTION: Do Not use a torque wrench for the fol-
lowing step.
(11) Turn bolts (1±10) an additional 1/4 turn in
sequence shown in (Fig. 56).
(12) Install main bearing bedplate to engine block
bolts (11±20), and torque each bolt to 28 N´m (250 in.
lbs.) in sequence shown in (Fig. 56).
(13) Tighten bolts (11±20) again to 28 N´m (250 in.
lbs.) in sequence shown in (Fig. 56).
(14) After the main bearing bedplate is installed,
check the crankshaft turning torque. The turning
torque should not exceed 5.6 N´m (50 in. lbs.).
CRANKSHAFT OIL SEAL -
FRONT
REMOVAL
(1) Remove the crankshaft vibration damper.
(Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION
DAMPER - REMOVAL)
(2) Remove timing belt. (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT/CHAIN AND
SPROCKETS - REMOVAL)
(3) Remove crankshaft sprocket using Special Tool
6793 and insert C-4685-C2 (Fig. 57).
CAUTION: Do not nick shaft seal surface or seal
bore.
Fig. 55 Main Bearing Caps/Bedplate Sealing
Fig. 56 Main Bearing Caps/Bedplate Tightening
Sequence
Fig. 57 Crankshaft Sprocket - Removal
1 - SPECIAL TOOL 6793
2 - CRANKSHAFT SPROCKET
9 - 42 ENGINE 2.4LRS
CRANKSHAFT MAIN BEARINGS (Continued)
ProCarManuals.com

(48) Remove the water pump pulley attaching
bolts and position pulley between pump hub and
housing.
(49) Disconnect the oil pressure switch electrical
connector.
(50) Disconnect wiring harness support clip from
engine oil dipstick tube.
(51) Install Special Tools 6912 and 8444 Adapters
on the right side (rear) of engine block (Fig. 9).
(52) Lower the vehicle.
(53) Remove the power steering pump and set
aside.
(54) Raise vehicle enough to allow engine dolly
Special Tool 6135 and cradle Special Tool 6710 with
post Special Tool 6848 and adaptor Special Tool 6909
to be installed under vehicle (Fig. 12).
(55) Loosen cradle/post mounts to allow movement
for positioning posts into locating holes on the engine
(Fig. 10) and (Fig. 11). Slowly lower vehicle and posi-
tion cradle/post mounts until the engine is resting on
posts. Tighten all cradle/post mounts to cradle frame.
This will keep mounts from moving when removing
or installing engine and transmission.(56) Lower vehicle so the weight ofONLY THE
ENGINE AND TRANSMISSIONis on the cradle.
(57) Install and secure the safety straps to the cra-
dle fixture and around the engine (Fig. 12).
(58) Remove the engine right side mount to engine
attaching bolts (Fig. 13).
(59) Remove the left mount through bolt (Fig. 14).
(60) Raise vehicle slowly. It is necessary to move
the engine/transmission assembly with the dolly to
allow for removal around body flanges.
Fig. 9 ADAPTER TOOLS MOUNTED ON BLOCK
1 - SPECIAL TOOL 6912
2 - SPECIAL TOOL 8444
Fig. 10 Positioning Special Tool 6848 for use with
Adapters 8444 & 6912
1 - SLOTS
2 - SPECIAL TOOLS 6848
Fig. 11 Special Tools 6848 with Adapters 6909
1 - OIL FILTER
2 - SPECIAL TOOLS 6909
3 - OIL PAN
4 - SPECIAL TOOLS 6848
RSENGINE 3.3/3.8L9-89
ENGINE 3.3/3.8L (Continued)
ProCarManuals.com

SPECIFICATIONS
3.3/3.8L ENGINE
DESCRIPTION SPECIFICATION
General Specification
Type 60É V-6 Engine
Number of Cylinders 6
Displacement
Ð3.3L 3.3 Liters
(201 cu. in.)
Ð3.8L 3.8 Liters
(231 cu. in.)
Bore
Ð3.3L 93.0 mm
(3.66 in.)
Ð3.8L 96.0 mm
(3.779 in.)
Stroke
Ð3.3L 81.0 mm
(3.188 in.)
Ð3.8L 87.0 mm
(3.425 in.)
Compression Ratio
Ð3.3L 9.35:1
Ð3.8L 9.6:1
Firing Order 1-2-3-4-5-6
Cylinder Number (Front
to Rear)
ÐFront Bank 2,4,6
ÐRear Bank 1,3,5
Compression PressureÐ
Minimum689.5 kPa
(100 psi)
Max. Variation Between
Cylinders25%
Cylinder Block
Cylinder Bore Diameter
(Standard)
Ð3.3L 92.993±93.007 mm
(3.661±3.6617 in.)
Ð3.8L 95.993±96.007 mm
(3.7792±3.780 in.)
DESCRIPTION SPECIFICATION
Out-of-Round (Service
Limits)0.076 mm
(0.003 in.)
Taper (Service Limits) 0.051 mm
(0.002 in.)
Lifter Bore Diameter 22.980±23.010 mm
(0.905±0.906 in.)
Deck Surface Flatness
(Max.)0.1 mm
(0.004 in.)
Pistons
Piston Diameter
Ð3.3L ÐMeasured 39.8
mm (1.567 in.) from
piston top92.968±92.998 mm
(3.660±3.661 in.)
Ð3.8L ÐMeasured 33.01
mm (1.30 in.) from piston
top95.968±95.998 mm
(3.778±3.779 in.)
Clearance in Bore @
Size Location (New)-0.005±0.039 mm
(-0.0002±0.0015 in.)
Weight
Ð3.3L 362  5 grams
(12.77  0.1764 oz.)
Ð3.8L 426  5 grams
(15.03  0.1764 oz.)
Piston Pins
Type Press Fit in Rod
(Serviced as an
Assembly)
Clearance in Piston @
21É C (70É F)0.006±0.019 mm
(0.0002±0.0007 in.)
Clearance in Connecting
Rod(Interference Fit)
Diameter 22.87±22.88 mm
(0.9007±0.9009 in.)
Length
Ð3.3L 67.25±67.75 mm
(2.648±2.667 in.)
Ð3.8L 71.25±71.75
(2.805±2.824 in.)
Piston Rings
Ring End GapÐTop
Compression Ring0.18±0.38 mm
(0.007±0.015 in.)
Wear Limit 1.0 mm
(0.039 in.)
9 - 92 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
ProCarManuals.com

Upper and lower number 2 bearing halves are
flanged to carry the crankshaft thrust loads and are
NOT interchangeable with any other bearing halves
in the engine (Fig. 59). All bearing cap bolts removed
during service procedures are to be cleaned and
lubricated with engine oil before installation. Bearing
shells are available in standard and the following
undersizes: 0.025 mm (0.001 in.) and 0.254 mm
(0.010 in). Never install an undersize bearing that
will reduce clearance below specifications.
CRANKSHAFT BEARING OIL CLEARANCE
Inspect the crankshaft bearing journals. (Refer to 9
- ENGINE/ENGINE BLOCK/CRANKSHAFT -
INSPECTION)
Engine crankshaft bearing clearances can be deter-
mined by use of Plastigage or the equivalent. The fol-lowing is the recommended procedures for the use of
Plastigage with the engine in the vehicle or engine
on a repair stand.
PLASTIGAGE METHODÐENGINE IN-VEHICLE
NOTE: The total clearance of the main bearings can
only be determined with the engine in the vehicle
by removing the weight of the crankshaft. This can
be accomplished by either of two following meth-
ods:
(1) Preferred method:
a. Shim the bearings adjacent to the bearing to be
checked in order to remove the clearance between
upper bearing shell and the crankshaft. This can be
accomplished by placing a minimum of 0.254 mm
(0.010 in.) shim (e. g. cardboard, matchbook cover,
etc.) between the bearing shell and the bearing cap
on the adjacent bearings and tightening bolts to
14±20 N´m (10±15 ft. lbs.).
²When checking #1 main bearing shim #2 main
bearing.
²When checking #2 main bearing shim #1 & #3
main bearing.
²When checking #3 main bearing shim #2 & #4
main bearing.
²When checking #4 main bearing shim #3 main
bearing.
NOTE: Remove all shims before reassembling
engine.
(2) Alternative Method:
a. Support the weight of the crankshaft with a
jack under the counterweight adjacent to the bearing
being checked.
(3) Remove oil film from surface to be checked.
Plastigage is soluble in oil.
(4) Place a piece of Plastigage across the entire
width of the bearing shell in the cap approximately
6.35 mm (1/4 in.) off center and away from the oil
holes (Fig. 60). (In addition, suspected areas can be
checked by placing the Plastigage in the suspected
area). Torque the bearing cap bolts of the bearing
being checked to the proper specifications.
(5) Remove the bearing cap and compare the width
of the flattened Plastigage (Fig. 61) with the scale
provided on the package. Locate the band closest to
the same width. This band shows the amount of
clearance in thousandths. Differences in readings
between the ends indicate the amount of taper
present. Record all readings taken. (Refer to 9 -
ENGINE - SPECIFICATIONS)Plastigage gener-
ally is accompanied by two scales. One scale is
in inches, the other is a metric scale.
Fig. 58 Main Bearing Cap Identification
Fig. 59 Main Bearing Identification
1 - OIL GROOVES
2 - OIL HOLES
3 - UPPER BEARINGS
4 - LOWER BEARINGS
9 - 120 ENGINE 3.3/3.8LRS
CRANKSHAFT MAIN BEARINGS (Continued)
ProCarManuals.com

NOTE: The main cap bolts should be examined
before reuse. Bolt stretch can be checked by hold-
ing a scale or straight edge against the threads. If
all the threads do not contact the scale the bolt
must be replaced (Fig. 63).
(5) Install each main cap and tighten bolts finger
tight.
(6) Tighten number 1, 3 and 4 main cap bolts to 41
N´m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn).
(7) Rotate the crankshaft until the number 6 pis-
ton is at TDC.
(8) To ensure correct thrust bearing alignment the
following procedure must be done:
a. Move crankshaft all the way to the rear of its
travel.
b. Then, move crankshaft all the way to the front
of its travel.
c. Wedge an appropriate tool between the rear of
the cylinder block and rear crankshaft counter-
weight. This will hold the crankshaft in it's most for-
ward position.
d. Tighten the #2 Thrust Bearing cap bolts to 41
N´m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn). Remove the
holding tool.
(9) Install oil pan. (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - INSTALLATION)
(10) Fill engine crankcase with proper oil to cor-
rect level.
CRANKSHAFT OIL SEAL -
FRONT
REMOVAL
(1) Disconnect negative cable from battery.
(2) Raise vehicle on hoist. Remove right wheel and
inner splash shield.(3) Remove accessory drive belt. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL)
(4) Remove crankshaft damper. (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL)
(5) Position Special Tool 6341A on crankshaft nose.
Carefully screw the tool into the seal until it engages
firmly (Fig. 64). Be careful not to damage that crank-
shaft seal surface of cover
(6) Remove oil seal by turning the forcing screw
until the seal disengages from the cover (Fig. 65).
Fig. 63 Check for Stretched (Necked) Bolts
1 - STRETCHED BOLT
2 - THREADS ARE NOT STRAIGHT ON LINE
3 - THREADS ARE STRAIGHT ON LINE
4 - UNSTRETCHED BOLT
Fig. 64 Engaging Tool into Seal
1 - SEAL
2 - SPECIAL TOOL 6341A
Fig. 65 Crankshaft Front Seal Removal
1 - SEAL
2 - SPECIAL TOOL 6341A
9 - 122 ENGINE 3.3/3.8LRS
CRANKSHAFT MAIN BEARINGS (Continued)
ProCarManuals.com

SPECIFICATIONS
SPECIFICATIONS - 2.5L COMMON RAIL
DIESEL ENGINE
ENGINE SPECIFICATIONS
DESCRIPTION SPECIFICATION
Type R2516C
Number of Cylinders 4
Bore 92 mm
Stroke 94 mm
Displacement 2499.5cc
Injection Order 1-3-4-2
Compression Ratio 17.5:1 (  0.5)
Maximum Power 103kW (140 HP) @ 4000
RPM
Peak Torque 320Nm (32.6 kgm) @
2000 RPM
CRANKSHAFT
Front Journal Diameter
Nominal 62.985-63.005 mm
-0.25 62.735-62.755 mm
Front Bearing Diameter
Nominal 63.045-63.074 mm
-0.25 62.795-62.824 mm
Clearance Between
Journal and Bearing0.040-0.089 mm
Center Journal Diameter
Nominal 63.005-63.020 mm
-0.25 62.755-62.770 mm
Center Bearing Diameter
Nominal 63.005-63.020 mm
-0.25 62.755-62.770 mm
Clearance Between
Journal and Bearing0.008-0.051 mm
Rear Journal Diameter
Nominal 89.980-90.000 mm
-0.25 89.730-99.750 mm
Rear Bearing Diameter
Nominal 90.045-90.065 mm
-0.25 89.795-89.815 mm
Clearance Between
Journal and Bearing0.045-0.080 mm
Connecting Rod Journal
Nominal 53.940-53.955 mm
DESCRIPTION SPECIFICATION
-0.25 53.690-53.705 mm
Connecting Rod Bearing
Nominal 53.977-54.016 mm
-0.25 53.727-53.766 mm
Clearance Between
Journal and Bearing0.022-0.076 mm
Crankshaft End Play
End Play 0.080-0.280 mm
Adjustment Thrust Washers
Thrust Washers Available 2.31-2.36 mm
2.41-2.46 mm
2.51-2.56 mm
Carrier with thrust
washers installed27.670-27.820 mm
MAIN BEARING CARRIERS
Internal Diameter
Front 67.025-67.050 mm
Center 66.670-66.690 mm
Rear 85.985-86.005 mm
LINERS
Internal Diameter 91.997-92.015 mm
Protrusion 0.01-0.06 mm
Adjustment Shims
Available Shims 0.15 mm
0.17 mm
0.20 mm
0.23 mm
0.25 mm
CYLINDER HEAD
Minimum Thickness 89.95-90.05 mm
Gasket Thickness 1.32 mm   0.08, 0
notches
1.42 mm   0.08, 1 notch
1.52 mm   0.08, 2
notches
CONNECTING RODS
Weight (without the
crankbearing)1129-1195 grams
Small End Bearing
Internal Diameter30.035-30.050 mm
Large End Internal
Diameter53.977-54.016 mm
9a - 8 ENGINERG
ENGINE 2.5L TURBO DIESEL (Continued)
ProCarManuals.com