3.56
ENGINE / COOLING SYSTEM
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Cylinder Head Assembly
NOTE: Assemble t he v alves on e at a t ime to
maintain proper order.
1. Apply engine oil to valve guides and seats.
2. Lubricate the valve stems with clean engine oil.
3. Install the valve (A) in the cylinder head, through the
gu
ide.
4. Carefully install a new va lve seal (
B) o n the val ve
guide with a rotating motion. Push firmly until seated
in retaining groove and square with the guide
5. Dip the seat (C), valve spring (D) and retainer (E) in
clea
n engine oil.
6. Install the valve spring seat (C).
7. Install th e valve spr ing (D) with tigh tly spa ced coils
f
acing down toward the cylinder head.
NOTE: Valve s prings to be ins talled with the pa int
ma
rk facing up.
8. Place the valve retainer (E) on the spring.
9. Compress the valve spring by hand using valve spring
co
mpressor adapter (PV-43513-A). Compress spring
only enough to allow split keeper installation.
NOTE: To prevent damage to the valve seals, do not
compr
ess the va lve sp ring more tha n ne cessary t o
install the keepers.
10. Install split keepers (F) with gap even on both sides.
11. Repeat this procedure for remaining valves.
12. Exercise each valve th rough its tr avel to ensure the
va
lve keepers are seated correctly.
Wear eye protection during cylinder head
disassembly and reassembly or when working
with the valve springs.
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