Page 152 - Manual_Polaris_RZR_ProXP-20-21

ENGINE / COOLING SYSTEM

PISTON / RINGS / CONNECTING ROD / CRANKSHAFT / BALANCE SHAFT
ITEM STANDARD SERVICE LIMIT
Standard O.D. - Measured 90° to pin, 0.39" 3.6597 ± .0003" (92.959 ± 0.008 mm)
(10 mm) up from piston skirt -
Piston
Piston Pin Bore I.D. (Standard) .8665 - .8668" (22.009 - 22.017 mm) .8678" (22.042 mm)
Piston Pin O.D. .8659 - .8661" (21.995 - 22.000 mm) .8651" (21.975 mm)
Top Ring .010 - .016" (0.24 - 0.40 mm) .0196" (0.50 mm)
Installed Second Ring .015 - .025" (0.37 - 0.63 mm) .028" (0.70 mm)
Gap
Piston Ring Oil Control Rails .010 - .040" (0.25 - 1.02 mm) .045" (1.15 mm)
Ring to Top Ring
Groove .0007 - .0023" (0.020 - 0.060 mm) .0047" (0.12 mm)
Clearance Second Ring
Connecting Rod Small End I.D. .8667 - .8673" (22.015 - 22.03 mm) .8677" (22.04 mm)
1 - Marking Conn. Rod Big End Bore I.D. 1.8892 - 1.8895" (47.987 - 47.994 mm) -
Connecting
Rod 2 - Marking Conn. Rod Big End Bore I.D. 1.8896 - 1.8898" (47.995 - 48.001 mm) -

3 - Marking Conn. Rod Big End Bore I.D. 1.8898 - 1.8901" (48.002 - 48.008 mm) -
A - Marking Main Journal O.D. 1.6140 - 1.6143" (40.996 - 41.004 mm) 1.6129" (40.970 mm)
B - Marking Main Journal O.D. 1.6137 - 1.6140" (40.988 - 40.995 mm) 1.6129" (40.970 mm)
C - Marking Main Journal O.D. 1.6134 - 1.6137" (40.980 - 40.987 mm) 1.6129" (40.970 mm)

A - Marking Rod Journal O.D. 1.7715 - 1.7717" (44.995 - 45.002 mm) 1.7704" (44.968 mm)
Crankshaft B - Marking Rod Journal O.D. 1.7718 - 1.7720" (45.003 - 45.010 mm) 1.7707" (44.976 mm)
C - Marking Rod Journal O.D. 1.7721 - 1.7724" (45.011 - 45.019 mm) 1.7710" (44.984 mm)

Less than .001″
MAG - (0.035 mm)
Runout
PTO - .002″ (0.05 mm)

Balance Bearing Journal O.D. (Standard) 1.4939 - 1.4946" (37.946 - 37.962 mm) 1.4921" (37.900 mm)
Shaft

3.8 9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.