Polaris 2012 RANGER RZR 570 INTL User Manual

3.41
ENGINE / COOLING SYSTEM
3
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Exhaust Camshaft Decompression
Mechanism
NOTE: Removal of t he d ecompression mec hanism
is not necessary unless replacement is required.
1. Thoroughly cle an an d inspe ct the de compression
me
chanism located on the exhaust camshaft.
2. Replace th e decom pression assemb ly if any
ex
cessive wear or binding is evident.
3. Be sure th e de compression me chanism fu nctions
smoo
thly and easily returns under spring pressure to
the resting position against gravity.
Cam Chain and Guide Service
NOTE: The cra nkcase has a remov able lowe r cam
chain g uide t hat pre vents th e ch ain f rom
disengaging the crankshaft during engine service.
NOTE: The c am c hain, ca m cha in guide s a nd c am
c
hain tensioner ca n b e re placed wit h t he eng ine
installed in the vehicle.
1. If no t a lready pe rformed, re move th e va lve cov er,
stator
cover , flywhe el, cam chain tensioner, cam
carrier and camshafts as outlined in this chapter.
2. Remove the (2) fasteners that secure the cam chain
guides to
the crankcase.
3. Remove the (2) fasteners that secure the lower cam
chain guide
to the crankcase.
4. Inspect all cam chain guides and replace if excessive
we
ar is evident.
5. Upon installation, torque all
fasteners to specification
and reassemble engine and vehicle as outlined in this
chapter.
Return Spring
Retaining Ring
Pivot
Decomp. Cam and Pin
= T
Tension Blade and Guides:
9 ft. lbs. (12 Nm)
9 ft. lbs
(12 Nm)

Polaris 2012 RANGER RZR 570 INTL Specifications

General

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