CRANKSHAFT
Removal
Remove the cylinder heads. (See Page
7A-13.)
Remove the pistons and rods. (See Page 7
A-19.)
Remove the front cover. (See Page
7A-23.)
Remove the
crankshaft gear.
Remove the oil pan and the oil pump.
Remove the flywheel and end cover [A).
Remove the bolt from the center main bearing. Remove
the crankshaft from the engine block.
Remove the center main bearing from the crankshaft [B).
Inspection
Clean all the parts and check them for wear
or
damage.
Replace the crankshaft or have it ground
as
needed. (See
Section
8A for SPECIFICATIONS.)
Install the correct bearing shell in the center main bearing.
Check the thrust washers for wear and damage. (See
Section
8A for SPECIFICATIONS.)
Assembly
Install the correct bushing into the block and end plate.
The oil holes in the bushings must be in alignment with the
holes in the block and end plate [C).
NOTE: After installation the bearing
must
extend
0.055-0.067
inch
(1,4-1,7
mm)
outside
the
front
of
the
block.
Put grease on the thrust washer in the crankcase to hold
it in position. The tab on the washer must align with the
slot (0).
-7A-33-
741, 742, 743,
7430S
Bobcat
Loader
Service Manual