Camshaft Sprocket Inspection; Camshaft Inspection - Polaris 2014 Sportsman 570 EF Service Manual

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Camshaft Sprocket Inspection

NOTE: Camshaft sprocket removal is not necessary

unless the replacement of the sprockets is required.

Inspect cam sprocket teeth for wear or damage. Replace

timing chain and sprockets as a set if worn or damaged.

NOTE: Replace intake camshaft sprocket bolt if

loosened or removed.

Intake Camshaft Sprocket Bolt:

33 ft-lb (45 Nm)

Inspect all main journals and cam lobes as described

below and compare to specifications. Replace camshafts

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

9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual

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.

Camshaft Lobe Height:

Intake: 1.5704" ± 0.0038" (39.89 ± 0.097 mm)

Exhaust: 1.5405" ± 0.0038" (39.13 ± 0.097 mm)

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