3.73
ENGINE / COOLING
3
9924096 - 2013 RANGER RZR XP 900 / RZR XP 4 900 Service Manual
© Copyright 2012 Polaris Sales Inc.
ENGINE ASSEMBLY - TOP END
Cylinder Head Assembly
NOTE: Assemble the valves one at a time to
maintain proper order.
1. Apply engine oil to valve guides and seats.
2. Coat valve stem with Premium Starter Grease
(2871460).
3. Install the valve (A) in the cylinder head, through the
guide.
4. Carefully install a new valve seal (B) on the valve
guide with a rotating motion. Push firmly until seated
in retaining groove and square with the guide
IMPORTANT: Valve seals should be installed AFTER
the valves are in the head to avoid valve seal damage.
5. Dip the seat (C), valve spring (D) and retainer (E) in
clean engine oil.
6. Install the valve spring seat (C).
7. Install the valve spring (D) with tightly spaced coils
facing down toward the cylinder head.
NOTE: Valve springs to be installed with paint mark
facing up.
8. Place the valve retainer (E) on the spring.
9. Compress the valve spring by hand using valve spring
compressor adapter (PV-43513-A). Compress spring
only enough to allow split keeper installation.
NOTE: To prevent damage to the valve seals, do not
compress the valve spring more than necessary to
install the keepers.
10. Install split keepers (F) with gap even on both sides.
11. Repeat this procedure for remaining valves.
Wear eye protection during cylinder head
disassembly and reassembly or when working
with the valve springs.
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