2.
Measure the distance from the PTO crankcase mating
surface to the main bearing using a dial caliper and a
straight edge.
3.
Subtract the thickness of the straightedge from the
measurement obtained in Step 2 and record.
PTO Case Depth______________________
4.
Measure the distance from the Magneto crankcase mating
surface to the main bearing using the same method and
record.
5.
Subtract the thickness of the straightedge from the
measurement obtained in Step 4 and record.
Mag Case Depth______________________
6.
Add the readings recorded in Step 3 and Step 5 and record
below.
Total Case Width______________________
7.
Measure the width of the crankshaft at the bearing seats
with a micrometer or dial caliper and record.
Crankshaft Width______________________
8.
Subtract the Crankshaft Width measured in Step 7 from the
Total Case Width recorded in Step 6, and record below.
Total End Play______________________
9.
Subtract the thickness of the existing shim from the result
of Step 8 to determine if a different shim is required. The
result must be within the specified range listed below.
Crankshaft End Play:
.008"-.016" (.02-.04 cm)
ENGINE
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