MAIN BEARING SELECTION CHART—3.2/3.5L
Main Bearing Bore Grade
Marks
123
A
(3)
standard
(2) +003
mm
(+0.0002
in.)
(1)
+0.006
mm
(+0.0003
in.)
Crankshaft
Main Journal
Grade Marks
B
(4)
-0.003
mm
(-0.0002
in.)
(3)
standard
(2) +003
mm
(+0.0002
in.)
C
(5)
-0.006
mm
(-0.0003
in.)
(4)
-0.003
mm
(-0.0002
in.)
(3)
standard
REMOVAL
Bearing caps are not interchangeable and are
marked to insure correct assembly (Fig. 68). Upper
and lower bearing halves are NOT interchangeable.
(1) Remove oil pan. (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - REMOVAL)
(2) Remove oil pick-up tube and windage tray.
(3) Identify bearing caps before removal (Fig. 68).
(4) Remove bearing caps one at a time. Remove
upper half of bearing by inserting Special Main Bear-
ing Tool C-3059 (Fig. 69) into the oil hole of crank-
shaft.
(5) Slowly rotate crankshaft clockwise, forcing out
upper half of bearing shell.
Fig. 67 Main Bearing Grade Marks
1 - LOWER MAIN BEARING
2 - UPPER MAIN BEARING
3 - OIL FEED HOLE AND GROOVE
4 - GRADE SELECTION INK MARKS
Fig. 68 Main Bearing Cap Identification
Fig. 69 Removing and Installing Upper Main Bearing
With Special Tool C- 3059
1 - SPECIAL TOOL C-3059
2 - BEARING
3 - SPECIAL TOOL C-3059
4 - BEARING
9 - 134 ENGINE 3.5L LH
CRANKSHAFT MAIN BEARINGS (Continued)