Service Manual
CHECKING CONNECTING
ROD
BEARING
CLEARANCE
WITH
PLASTIGAUGE
1.
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.
If
connecting
rod
bearing inserts are being replaced (P224 only),
install them in
rod
and cap.
2. 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).
3.
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.
4. Remove bearing cap. The flattened Plastigauge
will
be found adhering to either the bearing cap
or
FIGURE
24.
MEASURING BEARING CLEARANCE
crankshaft.
5.
Compare flattened Plastigauge with the graduations
on Plastigauge envelope to determine clearance.
The bearing plate must
be
removed to replace the oil
The number within the matching graduation on the seal (Figure 25). Drive the
oil
seal out from the inside.
envelope indicates total clearance in millimeters
or
thousandths of an inch. Before installing
seals,
fill
the
space between lips with a
OIL
SEALS
multi-purpose grease. This will improve sealing.
When, installing the gear cover
oil
seal, tap the
seal
inward until
it
is
.645
inch (16.4 mm) from the front of the
gear cover.
When installing the bearing plate oil
seal,
tap the
seal
into the bearing plate bore
to
bottom against the
shoulder in the plate bore. Use a seal expander
or
place
a
piece of
heavy
paper around the end of the crankshaft,
when replacing the bearing plate to avoid damaging the
seal. Remove the paper
as
soon
as
the plate is in place.
GEAR COVER
'
MOUNTING FACE
OF
GEAR COVER
REAR BEARING PLATE
SURFACE SHOULD BE
CLEANED OF ALL OLD
SEALING
COMPOUND
BEFORE INSTALLING
OR
PRESS
SEAL TO SHOULDER
OF THE PLATE BORE
GEAR COVER SURFACE
SHOULD
BE
CLEANED OF ALL
OLD SEALING COMPOUND
BEFORE INSTALLING SEAL
GEAR COVER OIL SEAL
REAR BEARING PLATE
OIL
SEAL
FIGURE
25.
GEAR COVER AND
REAR
BEARING
PLATE
OIL
SEALS
10-15