Bobcat 741 - Page 229

CAMSHAFT BEARINGS (Cont'd)
Removal
Remove the engine. (See Page 7B-8 .)
Remove the
flywheel.
Remove the crankshaft rear oil seal bracket. (See Page
78-31.)
Put a new gasket on the rear oil seal bracket using sealing
compound at the ends. Install the bracket on the cylinder
block
and tighten the bolts to specifications.
Install the flywheel on the crankshaft flange. Be sure
contact surfaces are
clean. Tighten the fastening bolts to
specifications.
Install the camshaft.
CRANKSHAFT
Removal
Remove the engine from the Bobcat and put it in an
engine stand.
(See Page 7B-8 .)
Remove the
flywheel from the crankshaft.
Loosen the governor fastening
bolts and remove the drive
belt.
Remove the sheave from the front of the crankshaft.
Remove the front cover.
Remove the
oil thrower from the shaft [A]. Remove the
timing chain tightener and timing chain. Remove the
crankshaft sprocket from the crankshaft.
Turn the engine over, remove the
oil pan. Remove the oil
inlet
tube and the screen.
Remove the four connecting rod bearing caps and keep
them
in order so that each cap will be installed on the
correct rods.
Remove the five main bearing caps and keep them
in
order so that each will be installed in the correct location.
Carefully
remove the crankshaft from the cylinder block.
Installation
Install the main bearings in the cylinder block. Install the
crankshaft and check the bearing
clearance using the
Plastigage method. (See Page 7B-13.) Install the correct
main bearing caps and tighten to specifications.
Check the crankshaft end
play. (See Page 78-7.)
Install the correct thickness of thrustwashers to give the
correct
endplay [B].
Revised Oct. 97
A
B
-7B-36-
741,742,743, 743DS Bobcat Loader
Service
Manual