Bobcat 741 - Page 268

ENGINE REPAIR (Cont'd)
Crankshaft
Service
NOTE: If
a new crankshaft is used, be sure the plugs
that come with the crankshaft are installed in
the crankshaft or engine damage will occur.
Put the crankshaft on V-blocks.
Put a dial indicator on the center journal and turn the
crankshaft slowly
[A] .
The specifications are
0.0008 inch (0,02 mm).
The wear limit is
0.0031 inch (0,08 mm).
Check the inside diameter of the crankshaft bearing in the 8
engine block [B].
The specification is 2. 0465-2.0488 inches
(51,98-52,039 mm). The wear limit is 0.0079 inch (0,2
mm) .
Check the outside diameter of the #1 crankshaft journal C
[C].
The specification is 2.0441-2.0449 inches (51,92-51,94
mm). The wear limit is 0.0079 inch (0,2 mm).
Check the connecting rod bearings [0].
The specifications are 1. 7327-1 .7343 inches
(44,01-44,05 mm). The wear limit is 0.0079 inch (0,2
mm).
Revised Sept. 90
o
-7C-32-
B-03631
B-03618
741,742,743, 7430S Bobcat Loader
Service Manual