CRANKSHAFT REAR OIL SEAL
(Cont'd)
Installation
Install a new crankshaft rear oil seal [AJ.
Put
a new gasket on the rear oil seal carrier using a
sealing compound at the end, and the carrier on the block
rear surface. TIghten the bolts evenly to specifications.
Put new gaskets
on
the block flange using sealing
compound at each end. Install the end seals with the
chamfered end into the grooves, again using a
sealing
compound and install the oil pan. TIghten the bolts to the
correct torque using the steps
in
[B].
Install the flywheel
on
the crankshaft flange. Be sure to
contact surfaces of
flywheel and crankshaft are clean.
TIghten
the bolts evenly to specifications.
MAIN BEARINGS
The cast iron crankshaft
is
supported by five bearings.
The main bearing caps must be kept
in
original position.
An
arrow
in
the cap points to the front of the engine
location marks are on the caps.
The front bearing cap has the
letter
F.
The second cap has
the number
2.
The center cap has the letter
C.
The fourth
cap has the number 4. The rear cap does not have a
marking.
Removal
Remove the main bearing caps and the thrustwashers.
Keep the caps
in
order so each cap will be installed in its
original position.
Remove the bearing
halves from the cylinder block and
from the caps.
Check the caps and crankshaft for damage.
Install new bearing halves
in
the cylinder block and from
the bearing caps.
Make sure that the crankshaft and the bearings are free
from dirt and other debris.
Measure the bearing
clearances using Plastigage. (See
Page
78-13.)
Installation
Clean the crankshaft and the bearings.
Install the crankshaft thrustwashers.
Put oil on the bearing surfaces and install the bearing
caps in their
original positions and tighten the bolts to
specifications.
Revised Oct. 97
B
18
17
-7B-33-
Gasket
INSTALLING SEAL
IN
CARRIER
2
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•
L
M
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•
14
13
3
4
5
6
7
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•
•
R~
N
0
P
Q
15
H
G
F
E9ie;
16
e
•
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12
11
10
9
8
PI-02177
741,742,743,
743DS
Bobcat
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