Page 174 - Manual Oficina Polaris RS1 2018 e 2019

ENGINE / COOLING SYSTEM

ENGINE ASSEMBLY - TOP END 6. Install the valve spring with widely spaced coils y on
the top and tightly spaced coils u facing down toward
CYLINDER HEAD ASSEMBLY the cylinder head.

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 (PN
2871460).
3. Install the valve q in the cylinder head, through the
guide.
NOTE
Valve springs to be installed with paint mark facing up
i.
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.
Valve spring compressor (PV-1253 or PV-4019
(Quick Release)) can be used if desired to aid in
installation.

4. Dip the new valve seat/seal w in clean engine oil and
carefully install the valve seat/seal on the 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 e and retainer r in clean
engine oil.

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 t with gap even on both sides.
10.Repeat this procedure for remaining valves.

3.88 9928689 - 2018 RZR RS1 Service Manual
© Copyright Polaris Industries Inc.