End Play Inspection/Adjustment; Crankshaft End Play Adjustment - Polaris Hawkeye Repair Manual

END PLAY INSPECTION/ADJUSTMENT

Before reassembling the crankcase, the following steps
should be performed to determine the amount of
crankshaft, counter balancer shaft, and pump shaft end
play. Excessive end play may cause engine noise at idle
and slow speeds. Too little play will side load the
bearings which may lead to premature bearing failure.

CRANKSHAFT END PLAY ADJUSTMENT

NOTE: The method described here is shown with
the PTO main bearing on the crankshaft, which is the
most common situation. If the bearing is in the case,
the procedure is the same, but the photo examples
will differ.
1. Make sure all bearings are firmly seated in the
crankcase.
2. Lay a straightedge on the left (PTO) crankcase and
measure the distance from the straightedge to the
bottom of the main bearing bore (if bearing is still on
the crankshaft) or to the bearing race (if the bearing
is installed in the case) using a dial caliper.
- www.instant-manuals.com -
3. Subtract the thickness of the straightedge from the
PTO Case Depth_________________________
4. Measure the distance from the Magneto crankcase
5. Subtract the thickness of the straightedge from the
Mag Case Depth_______________
measurement obtained in Step 2 and record.
mating surface to the main bearing using the same
method and record.
measurement obtained in Step 4 and record.
ENGINE
3.35