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9929419 R02 - 2018-2019 RZR XP / XP 4 Turbo S Service Manual
© Copyright Polaris Industries Inc.
3. Install upper rail with end gap positioned on the
exhaust side of piston
i
.
4. Install second compression ring with marking facing
top of piston
o
. Rotate ring to position the end gap
toward intake side of piston as shown below.
5. Install top compression ring with marks facing top of
piston
a
. Rotate ring to position the end gap toward
exhaust side of piston as shown below.
6. Be sure top and second rings rotate freely in their
grooves and do not bind when compressed by hand.
PISTON / CONNECTING ROD ASSEMBLY
1. Lubricate connecting rod small end, piston pin bore
and piston pin with engine oil.
CAUTION
Do not re-use circlips. Circlips become deformed during
the removal process.
Do not compress the new clip more than necessary to
prevent loss of radial tension. Severe engine damage
may result if circlips are re-used or deformed during
installation.
2. Install a new circlip
q
on one side of piston with gap
at the top (12:00 position).
IMPORTANT
Never re-use a piston pin circlip.
If reinstalling the original connecting rods, orientate the
rods the same as when removed. If new connecting
rods are being installed, they can be installed either
way (there is no piston pin offset in the rod), however it
is recommended they be installed with rods facing the
same direction.
ENGINE / COOLING SYSTEM
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