Page 279 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ENGINE / COOLING SYSTEM

PISTON / CONNECTING ROD ASSEMBLY CAUTION
1. Lubricate connecting rod small end, piston pin bore DO NOTapply heat to piston rings or a loss of
and piston pin with engine oil. radial tension could result.
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. 3
2. Install a new circlip on one side of piston with gap at
the top (12:00 position) or bottom (6:00 position).
NOTE
Never re-use a piston pin circlip.

3. When installing the piston, be sure the piston
marking “EX” is positioned towards the exhaust side 5. Install the remaining circlip r with gap at the top
of the engine. (12:00 position) or bottom (6:00 position). Push the
piston pin in both directions to make sure the clips
are properly seated in the groove.

4. Place piston q on connecting rod w. Push piston pin
e through rod and piston until it seats against the
installed circlip.
NOTE

Do not tap on pin or cause any sideways force to
connecting rod. Warm piston crown with a heat gun if
pin cannot be installed by hand, or use a piston pin
installation tool.

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 3.157
© Copyright Polaris Industries Inc.