Piston Ring Installed Gap - Polaris RANGER RZR 170 Service Manual

ENGINE
3. Measure piston pin bore. Replace piston if out-of-
round
Piston Pin Bore
4. Measure piston pin O.D. Replace piston pin if out-of-
round.
Piston Pin Measurement Locations
5. Measure connecting rod small end ID. Replace
crankshaft if out-of-round.
6. Measure piston ring to groove clearance by placing
the ring in the ring land and measuring with a
thickness gauge. Replace piston and rings if ring-to-
3.26

Piston Ring Installed Gap

1. Place each piston ring inside cylinder using piston to
2. Measure the gap with a feeler gauge at both the top
NOTE: Measure at two points in the cylinder A
difference in end gap indicates cylinder taper. The
cylinder should be measured for excessive taper
and out of round.
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.
groove clearance exceeds service limits.
push ring squarely into place as shown.
Piston ring end gap installed
Cylinder
Piston Ring
= In. / mm.
Piston Ring Installed Gap:
Top Ring
Std: .0059- .013" (.15-.35 mm)
Limit: .0196" (0.5 mm)
Second Ring
Std: .0059- .013" (.15-.35 mm)
Limit: .196" (0.5 mm)
Oil Ring
Std: .0079-.0314" (0.2- 0.8 mm)
Limit: .059" (1.5 mm)
and bottom of the cylinder.
Piston
Ring
Feeler Gauge
Feeler Gauge
25-50 mm