Dodge Dakota Sport 2001 Service Manual page 1068

AN
CRANKSHAFT MAIN BEARINGS (Continued)
(6) Remove the lower insert from the bearing cap.
(7) Remove the upper insert by LOOSENING (DO
NOT REMOVE) all of the other bearing caps. Now
insert a small cotter pin tool in the crankshaft jour-
nal oil hole. Bend the cotter pin as illustrated to fab-
ricate the tool (Fig. 42). With the cotter pin tool in
place, rotate the crankshaft so that the upper bear-
ing insert will rotate in the direction of its locking
tab. Because there is no hole in the No.3 main jour-
nal, use a tongue depressor or similar soft-faced tool
to remove the bearing insert (Fig. 42). After moving
the insert approximately 25 mm (1 inch), it can be
removed by applying pressure under the tab.
(8) Using the same procedure described above,
remove the remaining bearing inserts one at a time
for inspection.
Fig. 42 Removing Upper Inserts
1 - COTTER PIN
2 - FABRICATED TOOL
3 - BEARING INSERT
4 - TONGUE DEPRESSOR
INSPECTION
Wipe the inserts clean and inspect for abnormal
wear patterns and for metal or other foreign material
imbedded in the lining. Normal main bearing insert
wear patterns are illustrated (Fig. 43).
NOTE: If any of the crankshaft journals are scored,
remove the engine for crankshaft repair.
Inspect the back of the inserts for fractures, scrap-
ings or irregular wear patterns.
Inspect the upper insert locking tabs for damage.
Fig. 43 Main Bearing Wear Patterns
1 - UPPER INSERT
2 - NO WEAR IN THIS AREA
3 - LOW AREA IN BEARING LINING
4 - LOWER INSERT
Replace all damaged or worn bearing inserts.
INSTALLATION
(1) Lubricate the bearing surface of each insert
with engine oil.
(2) Loosen all the main bearing caps. Install the
main bearing upper inserts.
(3) Install the lower bearing inserts into the main
bearing caps.
(4) Install the main bearing cap(s) and lower
insert(s).
(5) Clean the rear main bearing cap (No.5) mating
surfaces.
(6) Apply Mopar Gasket Maker, or equivalent on
the rear bearing cap (Fig. 44). The bead should be 3
mm (0.125 in) thick. DO NOT apply Mopar Gasket
Maker, or equivalent to the lip of the seal.
(7) Install the rear main bearing cap. DO NOT strike
the cap more than twice for proper engagement.
(8) Tighten the bolts of caps 1, 3, 4 and 5 to 54
N·m (40 ft. lbs.) torque. Now tighten these bolts to 95
N·m (70 ft. lbs.) torque. Finally, tighten these bolts to
108 N·m (80 ft. lbs.) torque.
(9) Push the crankshaft forward and backward.
Load the crankshaft front or rear and tighten cap
bolt No.2 to 54 N·m (40 ft. lbs.) torque. Then tighten
to 95 N·m (70 ft. lbs.) torque and finally tighten to
108 N·m (80 ft. lbs.) torque.
(10) Rotate the crankshaft after tightening each
main bearing cap to ensure the crankshaft rotates
freely.
(11) Check crankshaft end play. Crankshaft end
play is controlled by the thrust bearing which is
flange and installed at the No.2 main bearing posi-
tion.
ENGINE 2.5L 9 - 39