Chrysler Dodge Caravan 2002 Manual page 1243

9 - 42 ENGINE 2.4L
CRANKSHAFT MAIN BEARINGS (Continued)
Fig. 55 Main Bearing Caps/Bedplate Sealing
Fig. 56 Main Bearing Caps/Bedplate Tightening
Sequence
(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:
• 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
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. 56) to 41 N·m (30 ft. lbs.).
• Step 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
(Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION
DAMPER - REMOVAL)
(2) Remove timing belt. (Refer to 9 - ENGINE/
VALVE TIMING/TIMING
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. 57 Crankshaft Sprocket - Removal
1 - SPECIAL TOOL 6793
2 - CRANKSHAFT SPROCKET
RS
vibration damper.
BELT/CHAIN AND