ENGINE
3.40
COUNTER BALANCER
SHAFT END PLAY ADJUST
.
Step 2
1. Make sure all bearings are firmly seated in the
crankcase.
2. Measure the width of the counter balancer shaft
at the bearing seats with a dial caliper or
micrometer, and record reading.
Step3/4
3. Measure the distance from the Mag crankcase
matingsurfacetothebalanceshaft bearingusing
a dial caliper and a straight edge. Subtract the
thickness of the straightedge and record.
4. Measure the distance from the PTO crankcase
mating surface to the bearing using the same
method outlined in Step 1, 2, and-3.
5. Add the readings obtained in Step 3 and Step 4.
6. Subtract the counter balancer shaft width
measured in Step 2 from the figure obtained in Step
5.
7. Subtract the thickness of the existing shim from
theresultofStep6todetermineif a differentshim
isneeded. Theresultmustbewithinthespecified
range listed at below .
Counter Balancer Shaft End Play:
.008″- .016″ (.02-.04 cm)
OIL PUMP SHAFT END PLAY
ADJUSTMENT
1. Makesurethepumpshaftbearingisfirmlyseated
in the Magneto side crankcase.
2. Measure the distance from the magneto
crankcase 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
measurementfromthemeasurementrecordedin
Step 2.
4. Subtract the thickness of the existing shim from
theresultofStep3todetermineif a differentshim
is needed. See Shaft End Play Spec. next page.
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