After allowing three to four minutes for drying, apply the
Locktite from the small tube to the mating surfaces of the
bearing and the bearing bore. Align the oil holes in the
bearing with the oil holes in the bearing bore (Fig-
ure
73).
The oil passage should be at least half open.
Install the bearing flush with the block, using the combi-
nation driver. Wipe
off
any exesss Locktite around the
bearing.
Allow
at least one hour for hardening at room
tern peratu re.
REAR BEARING END PLATE
ALIGN BEARING OIL HOLES
WITH OIL HOLES IN
BEARING BORE
THRUST
WASHER
FIGURE
72.
BEARINGS FOR REAR BEARING
PLATE
Engines shipped from the factory have separate thrust
washers and main bearings for both front and rear of
engine. Front bearing replacement part is a one piece
bearing (with attached thrust washer) as shown in
Figure
73.
Do
not add an additional thrust washer to this
front bearing.
FRONT MAIN
BEARING BORE
c
ALIGN BEARING
NOTCHES
W
lTli
LOCK
PINS
AND MATCH
OIL
HOLES
849
Rev
REPLACEMENT
FRONT MAIN
BEARING
FIGURE
73.
FRONT
BEARING
INSTALLATION
In the rear bearing plate, install the bearing flush
to
1
164
inch
(0.40
mm) below the end of the bore. Be sure
to align the oil holes in the bearing with the oil holes in
the bearing bore (Figure
72).
The oil passage must be at
least half open. Lubricate bearing after installation.
If
head of lock pin is damaged, use side cutters or Easy
Out tool to remove and install new pin. Oil grooves in
thrust washers must face the cranksahft, and washers
must be flat (not bent). The two notches on each washer
must fit over the two lock pins to prevent riding on the
crankshaft (Figure
72).
Lubricate the front main bearing lightly with
oil
and
insert the Crankshaft. With the raar bearing plate gasket
in place and the rear plate bearing lubricated, slide the
thrust washer (grooves toward crankshaft and plate
over the end of the crankshaft. Line up notches of thrust
washer with lock pins before tightening end plate or
lock pins will be damaged.
A light film
of
oil
on the thrust washer may
hold
it in place while
installing the crankshaft.
&
CRANKSHAFT
ENDPLAY
After the rear bearing end plate has been tightened,
using the torque recommended in
Assembly
Torques
and Special
Tools,
check the crankshaft endplay as
shown in Figure
74.
If there istoo much endplay (see
Dimensions and Clearances
for
minimum and max-
imum endplay), remove the rear bearing end plate
and add ashim (Figure
72)
between thethrustwasher
and plate. Reinstall the end plate, making sure the
thrust washer and shim notches line up with the lock
pins. Torque and recheck endplay
of
the crankshaft.
MEASURE ENDPLAY
HERE
J
(REFER
TO
DIMENSIONS
AND CLEARANCES)
FIGURE
74.
CRANKSHAFT ENDPLAY
,
52
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