3.35
ENGINE / COOLING
3
9924125 - 2013 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2012 Polaris Sales Inc.
Piston Removal
1. Remove the circlip. Mark the piston with a white pen
to ensure proper orientation (if reused) during
assembly.
NOTE: If the pistons are to be reused, reassemble
t
he pistons in the same cylinder and direction from
which they were removed.
NOTE: New pistons are non-directional and can be
plac
ed in either cylinder.
2. Remove piston circlip and push piston pin out of
p
iston. If necessary, heat the crown of the piston
slightly with a propane torch. CAUTION: Do not apply
heat to the piston rings. The ring may lose radial
tension.
3. Remove top compression ring:
*Using
a piston ring pliers: Carefully expand ring and lift
it off the piston. CAUTION: Do not expand the ring more
than the amount necessary to remove it from the piston, or
the ring may break.
*By hand:
Placing both thumbs as shown, spread the ring
open and push up on the opposite side. Do not scratch the
ring lands.
4. Repeat procedure for second ring.
5. Remove the oil control ring.
The oil control ring is a three piece design consisting of a
to
p and bottom steel rail and a center expander section.
The top rail has a locating tab on the end which fits into a
notch (B) in the upper oil ring land of the piston.
To Remove:
A) Remove the top rail first follo
wed by the bottom rail.
B) Remove the expander.
Compression
Rings
Oil Ring
B
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