3.70
9850068 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.
6. Inspect the auxiliary sprocket
y
and crankshaft gear
u
for broken or worn teeth.
NOTICE
If either the crankshaft gear or auxiliary sprocket is
damaged, the crankshaft assembly must be replaced.
7. Support crankshaft on V-blocks or on-centers in a
crankshaft stand or lathe. Measure crankshaft runout
where indicated and replace if runout exceeds
maximum listed below.
MEASUREMENT
Crankshaft Maximum Runout:
Less than .001″ (0.035 mm)
8. Visually inspect surface of crankshaft main and
connecting rod journals. Replace crankshaft if any
journal is scratched or pitted.
9. Measure each main journal and connecting rod
journal in two locations, 90 degrees apart. Replace
crankshaft if any journal is worn below the service
limit specification.
i
MAG End
d
PTO Rod Journal
o
Main Journal 1
f
Main Journal 3
a
MAG Rod Journal
g
Main Journal 4
s
Main Journal 2
h
PTO End
10.Refer to the six letters stamped onto the PTO end of
the crankshaft.
11. Use the table below to see if the crankshaft bearing
journals are within specification. If worn past the
service limit, replace the crankshaft assembly.
CRANKSHAFT BEARING JOURNAL DIAMETERS
A
Main
Bearing
Standard
1.6140 - 1.6143"
(40.996 - 41.004 mm)
Service Limit
1.6129" (40.970 mm)
Connecting
Rod Bearing
Standard
1.7715 - 1.7717"
(44.995 - 45.002 mm)
ENGINE / COOLING SYSTEM
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