ENGINE
3.59
PUMP SHAFT END PLAY ADJUSTMENT
1. Make sure the pump shaft bearing is firmly seated
in the Magneto side crankcase.
2. Measurethedistancefrom themagnetocrankcase
mating surface to the bearing using a dial caliper
and a straight edge. Subtract the thickness of the
straightedge and record.
3. Install the gear on the oil pump and measure the
width of the pump and gear. Subtract this
measurement from the measurement recorded in
Step 2.
4. Subtract thethicknessoftheexistingshim fromthe
result of Step 3 to determine if a different shim is
needed.
PUMP SHAFT OIL SEAL INSTALLATION
1. Install the seal from the outside of the crankcase
(water pump side) with the spring facing inward,
toward the pump shaft bearing.
2. Drive or press the seal into place using a 25mm
(.985″) seal driver, until flushwith theouter edgeof
the seal bore.
3. Lubricate the seal lip with grease.
Pump Shaft End Play:
.008″-.016″ (.02-.04 cm)
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