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9928491 R04 - 2017-2018 RZR XP Turbo / XP4 Turbo Service Manual
© Copyright Polaris Industries Inc.
3.51
2. Measure the height of each cam lobe from the base
circle to highest point on the lobe using a micrometer.
Compare to specification.
MEASUREMENT
Camshaft Lobe Height:
Intake: 1.5890 - 1.5921" (40.36 - 40.44 mm)
1.5870" (40.31 mm)
Exhaust: 1.5772 - 1.5803" (40.06 - 40.14 mm)
1.5752" (40.01 mm)
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.
MEASUREMENT
Camshaft Journal O.D.:
.9038 - .9046" (22.957 - 22.978 mm)
Service Limit: .9033" (22.944 mm)
5. Temporarily install the camshaft carriers to measure
the camshaft bore. Torque bolts in sequence to
specification. Replace cylinder head if worn.
NOTE
Replace cylinder head if camshaft journal bores are
damaged or if worn past the service limit.
TORQUE
Camshaft Carrier Bolts:
7 ft-lb (10 Nm)
MEASUREMENT
Camshaft Carrier Bore I.D.:
.9055 - .9063" (23.000 - 23.021 mm)
Service Limit: .9072" (23.044 mm)
6. Calculate oil clearance by subtracting camshaft
journal O. D. s from camshaft carrier bore I. D. s.
Compare to specification.
MEASUREMENT
Calculated Camshaft Oil Clearance:
.0009 - .0026" (0.022 - 0.067 mm)Service Limit:
.0039" (0.1 mm)
ENGINE / COOLING SYSTEM
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