Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual — part 502
(23) Remove the target ring mounting screws and
discard.
(24) Remove the target ring from the crankshaft.
INSPECTION
The crankshaft journals should be checked for
excessive wear, taper and scoring (Fig. 43). Limits of
taper or out of round on any crankshaft journals
should be held to 0.025 mm (0.001 in.). Journal
grinding should not exceed 0.305 mm (0.012 in.)
under the standard journal diameter. DO NOT grind
thrust faces of No. 3 main bearing. DO NOT nick
crank pin or bearing fillets. After grinding, remove
rough edges from crankshaft oil holes and clean out
all passages.
CAUTION: With the nodular cast iron crankshafts, it
is important that the final paper or cloth polish be
in the same direction as normal rotation in the
engine.
INSTALLATION - CRANKSHAFT
CRANKSHAFT MAIN BEARING LOCATION
The crankshaft is supported in five main bearings.
All upper bearing shells in the crankcase have oil
grooves and holes. All lower bearing shells except
for the thrust bearing half have oil grooves and holes
(Fig. 44). Crankshaft end play is controlled by a
flanged bearing on the number three main bearing
journal.
(1) Install the main bearing upper shells with the
lubrication groove and oil hole in the engine block
(Fig. 45).
(2) Make certain oil holes in block line up with oil
hole in bearings and bearing tabs seat in the block
tab slots.
NOTE: If the crankshaft is sent out for machine
work, it must be balenced as an assembly with the
target ring installed.
(3) Clean
crankshaft
and
target
ring
with
MOPAR
t brake parts cleaner and dry with com-
pressed air to ensure that the crankshaft mating sur-
face and target ring mounting holes are free from oil
and lock patch debris.
NOTE: Always use NEW mounting screws whether
installing original or new target ring.
(4) Install NEW mounting screws finger tight
starting with the #1 location. (Fig. 46) Make sure
engagment occurs with the shoulder of the screw and
mounting hole before starting all other screws.
Fig. 43 Crankshaft Journal Measurements
Fig. 44 Main Bearing Identification
1 - OIL GROOVE
2 - MAIN BEARINGS
3 - OIL HOLE
4 - LOWER THRUST BEARING PLAIN (NO OIL HOLE OR
GROOVE)
Fig. 45 Installing Main Bearing Upper Shell
1 - LUBRICATION GROOVES
2 - OIL HOLES
JR
ENGINE 2.4L DOHC
9 - 111
CRANKSHAFT (Continued)
(5) Torque all mounting screws with T30 torx bit
to 13 Nm (110 in-lbs) following the torque sequence.
CAUTION: Use extreme care when handling crank-
shaft. Tone wheel damage can occur if crankshaft is
mis-handled.
CAUTION: Do not get oil on the bed plate mating
surface. It will affect the ability of the sealer to seal
the bed plate to cylinder block.
(6) Oil the bearings and journals. Install crank-
shaft in engine block.
CAUTION: Use only Mopar
T
Bed Plate Sealant on
the bed plate or damage may occur to the engine.
(7) Install lower main bearings into main bearing
cap/bed plate. Make certain the bearing tabs are
seated into the bed plate slots and apply oil.
(8) Apply a 1.5 to 2.0 mm (0.059 to 0.078 in.) bead
of Mopar
t Bed Plate Sealant to the bed plate as
shown in (Fig. 47). Install the main bearing/bed plate
into engine block.
(9) Before installing the bolts the threads should
be oiled with clean engine oil, wipe off any excess oil.
(10) Install main bearing bed plate to engine block
bolts 11, 17, and 20 finger tight. Tighten these bolts
down together until the bed plate contacts the cylin-
der block (Fig. 48).
(11) To ensure correct thrust bearing alignment,
perform the following steps:
• Step 1: Rotate crankshaft until number 4 piston
is at TDC.
• Step 2: Move crankshaft rearward to limits of
travel.
• Step 3: Then, move crankshaft forward to limits
of travel.
• Step 4: Wedge an appropriate tool between the
rear of the cylinder block (NOT BED PLATE) and
Fig. 46 Target Ring Torque Sequence
1 - TARGET RING
Fig. 47 BED PLATE SEALING
Fig. 48 Main Bearing Caps/Bed Plate Bolt Torque
Sequence
9 - 112
ENGINE 2.4L DOHC
JR
CRANKSHAFT (Continued)
the rear crankshaft counterweight. This will hold the
crankshaft in it’s furthest forward position.
• Step 5: Install and tighten bolts (1–10) in
sequence shown in (Fig. 48) to 41 N·m (30 ft. lbs.).
• Step 6: Remove wedge tool used to hold crank-
shaft.
(12) Tighten bolts (1–10) again to 41 N·m (30 ft.
lbs.) in sequence shown in (Fig. 48).
(13)
Install main bearing bed plate to engine
block bolts (11–20), and torque each bolt to 28 N·m
(250 in. lbs.) in sequence shown in (Fig. 48).
(14) Tighten bolts (1–10) to 75 N·m (55 ft. lbs.) in
sequence shown in (Fig. 48).
(15) Tighten bolts (11–20) again to 28 N·m (250 in.
lbs.) in sequence shown in (Fig. 48).
(16) After the main bearing bed plate is installed,
check the crankshaft turning torque. The turning
torque should not exceed 5.6 N·m (50 in. lbs.).
(17) Check crankshaft end play (Refer to 9 -
ENGINE/ENGINE BLOCK/CRANKSHAFT - STAN-
DARD PROCEDURE).
(18) 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.
(19) Install balance shafts and housing assembly
(Refer to 9 - ENGINE/VALVE TIMING/BALANCE
SHAFT - INSTALLATION).
(20) Install the oil pump (Refer to 9 - ENGINE/
LUBRICATION/OIL PUMP - INSTALLATION).
(21) Install oil pump pick-up tube. Torque fastener
to 23 N·m (200 in. lbs.).
(22) Install the oil pan (Refer to 9 - ENGINE/LU-
BRICATION/OIL PAN - INSTALLATION).
(23) Install crankshaft position sensor.
(24) Install cylinder head if it was removed (Refer
to 9 - ENGINE/CYLINDER HEAD - INSTALLA-
TION).
(25) Install the timing belt rear cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT COVER(S)
- INSTALLATION).
(26) Install crankshaft sprocket (Refer to 9 -
ENGINE/VALVE
TIMING/TIMING
BELT
AND
SPROCKETS - INSTALLATION).
(27) Install the timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
INSTALLATION).
(28) Install the timing belt front covers (Refer to 9
- ENGINE/VALVE TIMING/TIMING BELT COV-
ER(S) - INSTALLATION).
(29) Install engine mount support bracket.
(30) Install crankshaft vibration damper (Refer to
9
-
ENGINE/ENGINE
BLOCK/VIBRATION
DAMPER - INSTALLATION).
(31) Install NEW oil filter.
(32) Install crankshaft rear oil seal (Refer to 9 -
ENGINE/ENGINE
BLOCK/CRANKSHAFT
OIL
SEAL - REAR - INSTALLATION).
(33) Install flex plate. Apply Mopar
t Lock & Seal
Adhesive to bolt threads and tighten to 95 N·m (70
ft. lbs.).
(34) Attach transaxle to engine. Tighten attaching
bolts to 101 N·m (75 ft. lbs.).
(35) Install the engine assembly (Refer to 9 -
ENGINE - INSTALLATION).
CRANKSHAFT OIL SEAL -
FRONT
REMOVAL
(1) Disconnect negative battery cable.
(2) Remove accessory drive belts (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
(3) Remove crankshaft damper (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL).
(4) Remove timing belt (Refer to 9 - ENGINE/
VALVE
TIMING/TIMING
BELT/CHAIN
AND
SPROCKETS - REMOVAL).
(5) Remove crankshaft sprocket using Special Tool
6793 and insert C-4685-C2 (Fig. 49).
CAUTION: Do not nick shaft seal surface or seal
bore.
(6) Use Tool 6771 to remove front crankshaft oil
seal (Fig. 50). Be careful not to damage the seal sur-
face of cover.
Fig. 49 Crankshaft Sprocket—Removal
1 - SPECIAL TOOL 6793
2 - CRANKSHAFT SPROCKET
JR
ENGINE 2.4L DOHC
9 - 113
CRANKSHAFT (Continued)
INSTALLATION
(1) Install new seal by using Special Tool 6780
(Fig. 51).
(2) Place
seal
into
opening
with
seal
spring
towards the inside of engine. Install seal until flush
with cover.
(3) Install crankshaft sprocket using Special Tool
6792 (Fig. 52).
(4) Install timing belt and timing belt covers
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN
AND
SPROCKETS
-
INSTALLA-
TION).
(5) Install
crankshaft
damper
(Refer
to
9
-
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION).
(6) Install accessory drive belts (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
INSTALLATION).
(7) Connect negative battery cable.
CRANKSHAFT OIL SEAL -
REAR
REMOVAL
(1) Remove transaxle (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC
-
41TE
-
REMOVAL).
(2) Remove flex plate (Refer to 9 - ENGINE/EN-
GINE BLOCK/FLEX PLATE - REMOVAL).
(3) Insert a 3/16 flat bladed screwdriver between
the dust lip and the metal case of the crankshaft
seal. Angle the screwdriver (Fig. 53)through the dust
lip against metal case of the seal. Pry out seal.
CAUTION: Do not permit the screwdriver blade to
contact crankshaft seal surface. Contact of the
screwdriver blade against crankshaft edge (cham-
fer) is permitted.
Fig. 50 Front Crankshaft Oil Seal—Removal
1 - SPECIAL TOOL 6771
2 - REAR TIMING BELT COVER
Fig. 51 Front Crankshaft Oil Seal—Installation
1 - PROTECTOR
2 - SEAL
3 - SPECIAL TOOL 6780
Fig. 52 Crankshaft Sprocket—Installation
1 - SPECIAL TOOL 6792
2 - TIGHTEN NUT TO INSTALL
9 - 114
ENGINE 2.4L DOHC
JR
CRANKSHAFT OIL SEAL - FRONT (Continued)
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