59
Center Crankcase
Components
NOTE: This procedure cannot be done with the
engine/transmission in the frame. Complete Remov-
ing procedures for Top-Side, Left-Side, and
Right-Side must precede this procedure.
NOTE: For efficiency, it is preferable to remove and
disassemble only those components which need to be
addressed and to service only those components. The
technician should use discretion and sound judgment.
Separating Crankcase
Halves
1. Remove the left-side and right-side cap screws
securing the crankcase halves noting the position of
the different-sized cap screws for joining purposes.
KM720A
2. Using Crankcase Separator/Crankshaft Remover and
tapping lightly with a rubber mallet, separate the
crankcase halves. Account for two alignment pins
and a gasket.
Disassembling Crankcase
Half
1. Remove the crankshaft from the left crankcase half.
KM721
2. Remove the balancer shaft from the left crankcase
half.
KM722
Servicing Center
Crankcase Components
CRANKSHAFT ASSEMBLY
Measuring Connecting Rod
(Small End Inside Diameter)
1. Insert a snap gauge into the upper connecting rod
small end bore; then remove the gauge and measure
it with micrometer.
CC290D
2. Maximum diameter must not exceed specifications.
Measuring Connecting Rod
(Small End Deflection)
1. Place the crankshaft on a set of V-blocks and mount a
dial indicator and base on the surface plate. Position
the indicator contact point against the center of the
connecting rod small end journal.
2. Zero the indicator and push the small end of the con-
necting rod away from the dial indicator.
3. Maximum deflection must not exceed specifications.
AT THIS POINT
To service crankshaft assembly, see Servicing Center
Crankcase Components sub-section.
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