3.37
ENGINE / COOLING SYSTEM
3
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
ENGINE DISASSEMBLY / INSPECTION - TOP END
Valve Cover Removal
NOTE: The valve cover, camshafts, cy linder hea d,
cylinder and piston can be serviced with the engine
installed in the chassis.
1. If needed, rem ove th e sp ark plu g wir e fr om the
e
ngine.
2. Remove dirt and debris from valve cover area.
3. Remove the ( 3) valve cover shou lder b olts ( A) a nd
iso
lators (B) using a T40 driver.
4. Carefully lift valve cover from the engine and remove
it out of
the right-hand rear wheel well area.
5. Replace isolators (B) and valve co ver seal (C) if oil
le
aks are evident.
6. Remove the spark plug (D). Stuff spark plug hole with
a
shop towel to prevent anything from falling into the
combustion chamber (if further engine disassembly is
required).
Camshaft Removal
NOTE: The c amshafts c an be removed wit h the
engine installed in the chassis.
1. Rotate the engine so the piston is at Top Dead Center
(TDC)
on the compression stroke.
NOTE: To verify TD C, see the “S ETTING TDC”
section in this chapter.
2. Remove the hydraulic cam chain tensioner (E) from
th
e cylin der. Repla ce the se aling washer (F ) u pon
reassembly.
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