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9924874 R02 - 2014 RZR XP / XP 4 1000 Service Manual
© Copyright 2013 Polaris Industries Inc.
4. Measure piston pin O.D. in two directions (90° apart)
at three locations on the length. Replace piston and
piston pin if out of specification.
Piston Pin O.D.:
0.7873 - 0.7875" (20.000 - 20.005 mm)
Service Limit: 0.7866" (19.98 mm)
Piston Ring Removal
1. Carefully remove top compression ring (Item 1) by
hand or using a ring removal pliers.
CAUTION
DO NOT expand the ring more than necessary to
remove it from the piston or the ring may break or lose
radial tension.
• Piston ring pliers: Carefully expand ring and lift it
off the piston.
• By hand: Placing both thumbs on the ring ends,
spread the ring open and push up on opposite
side. Do not scratch ring lands.
2. Repeat procedure for second compression ring (Item
2).
3. The oil control ring (Item 3) is a three piece design
consisting of a top and bottom steel rail and a center
expander section. Remove top rail first, then bottom
rail, then the expander.
ENGINE
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