Polaris 2012 RANGER RZR 570 INTL User Manual

3.53
ENGINE / COOLING SYSTEM
3
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
ENGINE ASSEMBLY - TOP END
Piston Ring Installation
NOTE: Apply clean eng ine oil t o all ring surfaces
and ring land s upo n in stallation. Always che ck
piston ring installed gap before rings are installed on
piston (s ee “Pis ton Ring Installed Ga p”). Clean
accumulated ca rbon fro m pist on ring grooves and
oil ring lube holes if piston has been in service.
1. Place oil co ntrol ring expa nder in oil ring groove.
Rotate e
xpander in groove until butt ends are on PTO
side of piston (see illustration 1).
IMPORTANT: Ends must butt squarely together and
mus
t not overlap.
2. Install lower rail with end gap positioned as shown in
illus
tration 1.
3. Install upper rail with end gap positioned as shown.
4. Install second ring with marking facing top of piston.
Ro
tate ring to position the end gap toward intake side
of piston as shown below.
5. Install top ring with mark facing top of piston. Ro
tate
ring to position the end gap toward exha ust side of
piston as shown below.
6. Be sure top a nd second rings rota te fr eely in their
g
rooves and do not bind when compressed by hand.
Upper Rail
Lower Rail
Spring Expander
Top Ring
Second Ring
Marking
Up
Marking
Up
Upper Rail
Gap Position
Lower Rail
Gap Position
Spring Expander
Gap Position
PTO
SIDE
Ill. 1
Second Ring
Gap Position
Top Ring
Gap Position

Polaris 2012 RANGER RZR 570 INTL Specifications

General

Brand	Polaris
Model	2012 RANGER RZR 570 INTL
Category	Offroad Vehicle
Language	English