Service Manual

CHECKING CONNECTING ROD BEARING OIL SEALS
1.
2.
3.
4.
5.
CLEARANCE WITH PLASTIGAUGE
Make certain that all parts are marked or identified
so they are installed in their original positions. Using
a clean dry cloth, thoroughly clean all oil from
crankshaft journal and connecting rod.
Place a piece of correct size Plastigauge in the
bearing cap the full width of the journal surface and
about
1/4 inch (6.35 mm) off center (Figure 24).
Rotate the crankshaft about 30 degrees from bottom
dead center and reinstall the-bearing cap; tighten
rod bolts
to the torque specified in ASSEMBLY
TORQUES AND SPECIAL TOOLS. Do not turn the
crankshaft.
Remove bearing cap. The flattened Plastigauge will
be found adhering
to either the bearing cap or
crankshaft.
Compare flattened Plastigauge with thegraduations
on Plastigauge envelope
to determine clearance.
The number within the matching graduation on the
envelope indicates total clearance in millimeters or
thousandths of an inch.
The gear cover and oil base have
to be removed to
replace the oil seals. Drive
oil seals out from the inside,
being careful not to damage the
oil base and gear cover
surfaces.
Before installing oil seals
fill the space between lips with
a multi-purpose grease.
Clean old sealing compound
off of gear cover oil seal
mounting surface before installing new oil seal. Install
the gear cover oil seal to the dimension shown (Figure
25).
Use a seal expander when installing oil base oil seal to
prevent damage to oil seal. Install, oil seal flush with
outside
of oil base (Figure 21)
OIL SEAL I
OF GEAR COVER
MOUNTING FACE
I
THIS GEAR COVER SURFACE
SHOULD BE CLEANED OF ALL
OLD SEALING COMPOUND
BEFORE INSTALLING SEAL
A
GEAR COVER
GEAR COVER OIL SEAL
LS-1163
FIGURE 25. GEAR COVER OIL SEAL
FIGURE
24. MEASURING BEARING CLEARANCE