66
Bearing Selection
NOTE: This information is needed only if the
crankshaft or the engine cases have been replaced or
if the connecting rod and main bearings are out of
specifications.
Select the proper bearing inserts for the replacement in
accordance with the crankshaft mark.
ROV1-117A
The connecting rods utilize a grade letter mark. The mark
will be either “A” or “B” located on the side surface of
rod as shown. Determine the replacement bearing color
by following the table.
ROV1-118A
The crank cases utilizes a grade letter mark. The mark
will be “A” or “B” located on the side surface of the case
as shown. Determine the replacement bearing color by
following the table.
KC538A
The crank balancer utilizes a grade letter mark. The mark
will be “A” or “B” located on the balancer shaft as
shown. Determine the replacement bearing color by fol-
lowing the table.
KC531A
Installing Bottom-Side
Components
NOTE: Verify all four alignment pins are installed
and all four of the appropriate-sized connecting rod
bearings are installed.
Crankshaft
Mark
Connecting Rod
Mark
Bearing Inserts Color
Choice
A
A
Black
A
B
Green
B
A
Green
B
B
Red
Crankshaft
Mark
Crankcase Mark
Bearing Inserts Color
Choice
A
A
Black
A
B
Green
B
A
Green
B
B
Red
Balancer Shaft
Mark
Crankcase Mark
Bearing Inserts Color
Choice
A
A
Yellow
A
B
Green
B
A
Green
B
B
Brown
