Engine Assembly - Top End; Cylinder Head Assembly - Polaris 2015 RZR 900 Service Manual

ENGINE / COOLING SYSTEM

ENGINE ASSEMBLY - TOP END

Cylinder Head Assembly

NOTE: Assemble the valves one at a time to
maintain proper order.
WARNING
Wear eye protection during cylinder head disassembly
and reassembly or when working with the valve springs.
1. Apply engine oil to valve guides and seats.
2. Coat valve stem with Premium Starter Grease
(2871460).
3. Install the valve in the cylinder head, through the
1
guide.
4. Carefully install a new valve seal / seat
valve guide with a rotating motion. Push firmly until
seated in retaining groove and square with the guide
NOTE: Valve seals should be installed AFTER
the valves are in the head to avoid valve seal
damage.
5. Dip the valve spring
engine oil.
3.74
on the
and retainer in clean
9925723 R01 - 2015 RZR 900 Service Manual
© Copyright 2014 Polaris Industries Inc.
6. Install the valve spring with widely spaced coils
the top and tightly spaced coils
toward the cylinder head.
NOTE: Valve springs to be installed with paint
mark facing up.
7. Place the valve retainer on the spring.
8. 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.
9. Install split keepers with gap even on both sides.
10. Repeat this procedure for remaining valves.
on
facing down