Table of Contents
Piston Ring Installed Gap
1.
Position each piston ring 1/2/1 (1.3 cm) from the top
of the cylinder using the piston to push it squarely
into place.
Measure installed gap with a feeler
gauge at both the top and bottom of the cylinder.
NOTE:
A difference in end gap between the bottom and
top of the cylinder indicates cylinder taper. The cylinder
should be measured for excessive taper and out of
round. Replace rings if the installed end gap exceeds
the service limit. Refer to page 3.3 for specifications.
NOTE:Always check piston ring installed gap after re-
boring a cylinder or when installing new rings.
Piston Pin
I
Needle Bearing Inspection
1.
Clean needle bearing in solvent and dry with
compressed air.
2.
Inspect needle cage carefully for cracks or shiny
spots which indicate wear. Replace needle bearing if
worn or cracked, and always replace if piston
damage has occurred.
3.
Visually inspect piston pin for damage, discoloration,
or wear. Run your fingernail along the length of the
pin and replace it if any rough spots, galling or wear is
detected. Measure piston pin.
Polaris Industries Inc.
3.34a
ENGINE
Disassembly/Inspection - Polaris
10/96
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