Piston Ring Removal - Polaris 2015 RZR 900 Service Manual

3. Measure piston pin bore I. D. in two directions (90°
apart). Replace piston and piston pin if out of
specification.
Piston Pin Bore I.D.:
0.7876" - 0.7878" (20.004 - 20.009 mm)
Service Limit: 0.7893" (20.05 mm)
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.:
0.7872" - 0.7874" (19.995 - 20.000 mm)
Service Limit: 0.7866" (19.98 mm)

Piston Ring Removal

1. Carefully remove top compression ring
remove it from the piston or the ring may break or lose
2. Repeat procedure for second compression ring
3. The oil control ring
9925723 R01 - 2015 RZR 900 Service Manual
© Copyright 2014 Polaris Industries Inc.
ENGINE / COOLING SYSTEM
using a ring removal pliers.
CAUTION
DO NOT expand the ring more than necessary to
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.
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.
by hand or
1
3
.
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