Page 155 - Manual Oficina Polaris RS1 2018 e 2019

ENGINE / COOLING SYSTEM

PISTON DISASSEMBLY / INSPECTION 3. Measure piston pin bore I. D. in two directions (90°
apart). Replace piston and piston pin if out of
NOTE specification.
New pistons are directional (intake vs. exhaust), but
can be placed in either cylinder.

1. Note location of the piston circlip gap q at the top
(12:00 position) or bottom (6:00 position).

3

MEASUREMENT
Piston Pin Bore I.D.:
.7877 - .7881" (20.009 - 20.018 mm)
Service Limit:
2. Remove piston circlip and push piston pin out of .7893" (20.05 mm)
piston. If necessary, heat the crown of the piston
slightly with a heat gun if pin cannot be removed by 4. Measure piston pin O.D. in two directions (90° apart)
hand. Discard circlips. at three locations on the length. Replace piston and
piston pin if out of specification.

CAUTION
DO NOTapply heat to piston rings or a loss of radial
tension could result. MEASUREMENT
Piston Pin O.D.:
.7873 - .7875" (20.000 - 20.005 mm)
Service Limit:
.7866" (19.98 mm)

9928689 - 2018 RZR RS1 Service Manual 3.69
© Copyright Polaris Industries Inc.