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To replace the main bearing, use the special tool, Bearing Installer,
Part Number 33742.
(1)
To remove the main bearing, install
the
guide
ring
to
the
installer
body as illustr ated.
To pull the
main
bearing
out
of
the
bearing
housing,
push
it
from
the
front
side to the rear side.
To remove
the main bearing at the rear of the
crankcase, remove the oil seal, and
then push the bear ing inward from
the rear side of the crankcase.
~ ~
Fo, fmnt
b ..
ring
Bearing Installer
(2)
To install the main bearing, assemble the main bearing installer
body and guide ring as illustrated and press in the bearing in the
same direction of removal.
Since the front bearing is to installed 2.5mm inside from the refer-
ence surface at the bearing installation side, use the furnished tool
adapter ring.
1. Guide ring
2. Main bearing
3. Bearing installer
4. Bearing housing (front)
or crankcase (rear)
Removing the Main Bearing
CAUTION
Marking
I. Bearing installer
2. Main bearing
. .
3. Guide ring
Installing the Main Bearing
1.
Install the main bear ing so that the oil hole of the bear ing
aligns with that of the crankcase.
Set the oil hole position of
the main bearing to the mark line stamped on the collar of the
installer body, and then press the bearing in while aligning the
oil hole with that of the crankcase.
After setting, do not turn
the tool or bearing.
Be sure that the butting part of the main
bearing is in the illustrated position.
2.
Before installing the bear ing, apply eng ine oil to the outside
surface of the bearing.
Be sure to use a press to install the
bearing.
Install the bearing squarely.
53
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