Piston Ring To Groove Clearance Inspection; Piston Ring Installed Gap (1000) - Polaris GENERAL 2016 Service Manual

2. Repeat procedure for second compression ring
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3. The oil control ring
consisting of a top and bottom steel rail and a center
expander section. Remove top rail first, then bottom
rail, then the expander.
PISTON RING TO GROOVE CLEARANCE
INSPECTION
1. Measure piston ring to groove clearance
placing the ring in the ring land and measuring with a
thickness (feeler) gauge. Replace piston and rings if
ring-to-groove clearance exceeds service limits.
MEASUREMENT
Piston Ring to Groove Clearance:
Top / Second Ring:
.0007 - .0023" (0.020 - 0.060 mm)
Service Limit:
.0047" (0.12 mm)
9929375 R02 - 2016-2019 GENERAL / GENERAL 4 Service Manual
© Copyright Polaris Industries Inc.
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.
is a three piece design
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by
ENGINE / COOLING SYSTEM

PISTON RING INSTALLED GAP (1000)

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1. Place each piston ring
the piston to push the ring squarely into cylinder, as
shown below.
2. Measure installed gap with a feeler gauge
the top and bottom of the cylinder.
NOTICE
A difference between top and bottom end gap
measurements is a general indication of cylinder taper
(wear). The cylinder should be measured for taper and
out of round.
3. If the installed gap measurement exceeds the
service limit, replace the rings.
MEASUREMENT
Piston Ring Installed Gap:
Top Ring: .010 - .014" (0.25 - 0.35 mm)
Service Limit: 1.6118 - 1.6122" (40.942 - 40.950 mm)
Second Ring: 1.6118 - 1.6122" (40.942 - 40.950 mm)
Service Limit: .028" (0.70 mm)
Oil Control Rails: .008 - .028" (0.20 - 0.70 mm)
Service Limit: .0354" (0.9 mm)
NOTICE
Always check piston ring installed gap when installing
new rings and/or a new cylinder.
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inside the cylinder . Use
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at both
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