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ENGINE / COOLING
9924096 - 2013 RANGER RZR XP 900 / RZR XP 4 900 Service Manual
© Copyright 2012 Polaris Sales Inc.
10. Mark the intake (L) and exhaust (M) camshafts to
ensure proper assembly.
11. Carefully remove camshafts from the cylinder head.
Camshaft Sprocket Inspection
Inspect cam sprocket teeth for wear or damage. Replace
timing chain and sprockets if worn or damaged.
Camshaft / Camshaft Bore Inspection
Inspect all main journals and cam lobes as described
below and compare to specifications. Replace
camshaft(s) or cylinder head if worn beyond service limit
or if any surface is pitted or damaged.
1. Visually inspect each cam lobe for wear or damage.
2. Measure the height of each cam lobe from the base
circle to highest point on the lobe using a micrometer.
Compare to specification.
NOTE: Replace camshafts if damaged or if any part
is worn past the service limit.
3. Visually inspect each camshaft journal for scoring,
wear or damage.
4. Measure the diameter of the camshaft journals using
a micrometer. Compare to specification.
NOTE: Replace camshafts if damaged or if any part
is worn past the service limit.
Inspect
Sprocket Teeth
Replace if
Worn or Damaged
Camshaft Lobe Height:
Intake: 1.5390" - 1.5429" (39.09 - 39.19 mm)
Service Limit: 1.5370" (39.04 mm)
Exhaust: 1.5142" - 1.5181" (38.46 - 38.56 mm)
Service Limit: 1.5122" (38.41 mm)
Camshaft Journal O.D.:
0.9036" - 0.9055" (22.954 - 22.999 mm)
Service Limit: 0.9033" (22.944 mm)
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