Page 164 - Manual Oficina Polaris RZR XP 1000 17-18

ENGINE / COOLING SYSTEM

PISTON RING REMOVAL PISTON RING TO GROOVE CLEARANCE
1. Carefully remove top compression ring q by hand or INSPECTION
using a ring removal pliers. 1. Measure piston ring to groove clearance q by
placing the ring in the ring land and measuring with a
CAUTION thickness (feeler) gauge. Replace piston and rings if
DO NOTexpand the ring more than necessary to ring-to-groove clearance exceeds service limits.
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.

MEASUREMENT
Piston Ring to Groove Clearance:
Top / Second Ring:
.0007 - .0023" (0.020 - 0.060 mm)
Service Limit:
.0047" (0.12 mm)

2. Repeat procedure for second compression ring w.
3. The oil control ring e 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.

3.56 9928492 R06 - 2017-2018 RZR XP 1000 / XP4 1000 Service Manual
© Copyright Polaris Industries Inc.