Camshaft Installation / Timing - Polaris 2012 RANGER RZR 570 INTL Service Manual

Camshaft Installation / Timing

IMPORTANT: If a ny va lve tr ain compo nents were
replaced, refer to "Valve Clea rance Adjust ment"
procedure prior to "Camshaft Installation / Timing".
1. Rotate the engine and position the piston at TDC.
2. Reference th e in take and ex haust ma rkings m ade
during disassembly.
INTAKE
Intake Cam
Part Number
3. Lubricate a ll camsha ft lo bes a nd be aring jo urnal
surfaces with Pola ris PS- 4 Plus en gine oil pr ior to
installation.
4. Place the exha ust cam in to th e cylin der he ad and
align the timing marks as shown below.
E
5. Wrap the cam chain around the exhaust cam sprocket
and hold the exhaust cam in its current position.
6. Carefully install the intake cam at an angle to allow for
Exhaust Cam
EXHAUST
(decompression)
Part Number
IMPORTANT: Intake c am spr ocket s hould h ave "I"
marks aligne d wit h g asket su rface and th e e xhaust
cam s procket sh ould ha ve "E" mark s a ligned wit h
gasket surface.
E
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
ENGINE / COOLING SYSTEM
cam c hain installation. Ro ll the cam shaft into its
bearing pockets and verify that the timing marks are
in alignment as shown below.
3
3.63