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9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
3.105
PISTON RING INSTALLED GAP
1. Place each piston ring inside cylinder. Use a piston
to push the ring squarely into place 1” (25.4 mm)
down from the cylinder head gasket surface.
2. Measure installed gap with a feeler gauge at location
q
.
Piston Ring Installed Gap
Top Ring:
Std: 0.0059 - 0.0122" (0.15 - 0.31 mm)
Limit: 0.0137" (0.35 mm)
Second Ring:
Std: 0.0094 - 0.0196" (0.24 - 0.50 mm)
Limit: 0.022" (0.56 mm)
Oil Ring Rails:
Std: 0.0098” - 0.0401" (0.25 - 1.02 mm)
Limit: 0.0480" (1.22 mm)
NOTICE
Always check piston ring installed gap after re-boring a
cylinder or when installing new rings.
ENGINE / COOLING SYSTEM
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