3.34
ENGINE / COOLING
9924125 - 2013 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2012 Polaris Sales Inc.
Valve Sealing Test
1. Clean and dry the combustion chamber area (A).
2. Pour a small amount of clean solvent onto the intake
por
t and check for leakage around each intake valve.
The valve seats should hold fluid with no seepage.
3. Repeat for exhaust valves by pouring fluid into
exha
ust port.
Cylinder Removal
1. Follow engine disassembly procedures to remove
rocker cover and cylinder head.
2. Tap cylinder (A) lightly with a rubber mallet in the
re
inforced areas only until loose.
3. Rock cylinder forward and backward while lifting it
f
rom the crankcase, supporting pistons and
connecting rods. Support pistons with Piston Support
Block (PN 2870390).
Valve Lifter Removal / Inspection
1. Remove the valve lifters by reaching into the
crankcase and pushing the lifter up through the lifter
bore by hand.
2. Thoroughly clean the lifters in cleaning solvent and
wip
e them with a clean, lint-free cloth.
3. Mark the lifters with a white pen if using the lifters for
reas
sembly. This will ensure that the lifters are
properly placed during engine reassembly.
4. Check the lifters for wear or scores.
5. Check the bottom end of lifter to
make sure that it has
a slight convex.
6. If the bottom surface has worn flat, it may be used with
the
original camshaft only.
NOTE: Lifters that are scored, worn, or if the bottom
is
not smooth should be replaced with new lifters
and cam as an assembly. If replacing the lifters, the
camshaft should also be replaced.
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