Polaris RZR 900 2017 Service Manual page 244

ENGINE / COOLING SYSTEM
7. Inspect the crankshaft gear
y
for broken or worn teeth.
8. If the crankshaft gear or sprocket is damaged, the
crankshaft assembly must be replaced.
9. Support crankshaft on V-blocks or on-centers in a
crankshaft stand or lathe. Measure crankshaft run-
out and replace if run-out exceeds maximum listed
below.
MEASUREMENT
Crankshaft Maximum Runout:
Less than .001" (0.025 mm)
10. Visually inspect surface of crankshaft main and
connecting rod journals. Replace crankshaft if any
journal is scratched or pitted.
3.110
u
and auxiliary sprocket
9930588 R02 - 2017-2020 RZR 900 900/S 900/S4 1000/S 1000/S4 Service Manual
11. 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
o
Journal 1 (Main
Bearing)
a
Journal 2 (Rod
Bearing)
s
Journal 3 (Main
Bearing)
12. Refer to the six letters stamped onto the PTO end of
the crankshaft.
13. 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
B
Main
Standard
Bearing
d
Journal 4 (Rod
Bearing)
f
Journal 5 (Main
Bearing)
g
Journal 6 (Main
Bearing)
h
PTO End
1.6140 - 1.6143"
(40.996 - 41.004
mm)
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