Piston Disassembly / Inspection - Polaris RZR PRO XP 2020 Service Manual

ENGINE / COOLING SYSTEM

PISTON DISASSEMBLY / INSPECTION

NOTICE
New pistons are directional (intake vs. exhaust), but
can be placed in either cylinder. The arrow will point
towards the exhaust side.
1. Note location of the piston circlip gap
(12:00 position).
2. Remove piston circlips
of piston. If necessary, heat the crown of the piston
slightly with a heat gun if pin cannot be removed by
hand. Discard circlips.
DO NOT apply heat to piston rings or a loss of radial
tension could result.
3.74
q
at the top
w e
and push piston pin
CAUTION
3. Measure piston pin bore I.D. in two directions (90°
apart). Replace piston and piston pin if out of
specification.
.8665 - .8668" (22.009 - 22.017 mm)
Service Limit:.8678" (22.042 mm)
out
4. Measure piston pin O.D. in two directions (90° apart)
at three locations on the length. Replace piston and
piston pin if out of specification.
.8659 - .8661" (21.995 - 22.000 mm)
Service Limit: .8651" (21.975 mm)
9850068 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
MEASUREMENT
Piston Pin Bore I.D.:
MEASUREMENT
Piston Pin O.D.:
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