edges from crankshaft oil holes and clean out all pas-
sages.
CAUTION: With a forged steel crankshaft it is
important that the final paper or cloth polish after
any journal regrind be in the same direction as nor-
mal rotation in the engine.
The crankshaft thrust is controlled with thrust
washers located at the upper No. 2 main bearing
bulk head (Fig. 114). All bearing cap bolts removed
during service procedures are to be cleaned and oiled
before installation. Bearing shells are available in
standard and the following undersize: 0.025 mm
(0.001 in.) and 0.254 mm (0.010 in.). Never install an
undersize bearing that will reduce clearance below
specifications.
REMOVAL
(1) Remove oil pan, pick-up tube, and windage
tray. Refer to procedures in this section. Identify
bearing caps before removal.
(2) Remove bearing caps one at a time. Remove
upper half of bearing by inserting Special Main Bear-
ing Tool C-3059 (Fig. 115) into the oil hole of crank-
shaft.
(3) Slowly rotate crankshaft clockwise, forcing out
upper half of bearing shell.
INSTALLATION
CAUTION: Main bearings are select fit. Refer to
Crankshaft Main Bearing Fitting in this section for
proper bearing selection.
NOTE: Only one main bearing should be selectively
fitted while all other main bearing caps are properly
tightened.
When installing a new upper bearing shell, slightly
chamfer the sharp edges from the plain side.
(1) Lubricate main bearing with clean engine oil.
(2) Start bearing in place, and insert Main Bearing
Tool C-3059 into oil hole of crankshaft (Fig. 115).
(3) Slowly rotate crankshaft counterclockwise slid-
ing the bearing into position. Remove Special Main
Bearing Tool C-3059.
NOTE: Lubricate main bearing cap bolts with
engine oil before installation.
Fig. 113 Main Bearing Cap Identification
Fig. 114 Main Bearing Identification
Fig. 115 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
LH 3.2/3.5L ENGINE 9 - 131
REMOVAL AND INSTALLATION (Continued)
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