Rocker Arm / Rocker Arm Shaft Inspection; Camshaft / Camshaft Bore Inspection - Polaris Sportsman 850 Service Manual
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Also See for Sportsman 850:
- Owner's manual (167 pages) ,
- Owner's manual for maintenance and safety (153 pages) ,
- Service manual (12 pages)
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ENGINE / COOLING SYSTEM
ROCKER ARM / ROCKER ARM SHAFT
INSPECTION
1. Mark or tag rocker arms and shafts to keep them in
their respective locations for assembly.
2. Slide rocker arm shafts from carrier and remove the
intake and exhaust rocker arms.
3. Inspect each rocker arm roller. Roller surface should
be smooth. Axial movement should be minimal. Roll
a smooth flat rod across the roller, applying firm
downward pressure on roller while observing roller
movement. Roller should turn smoothly without
binding. Replace rocker arm if roller surface is
damaged, or if roller does not turn smoothly.
3.48
4. Measure I.D. of rocker arms and O.D. of rocker arm
shafts. Measure shaft bore in cam carrier. Compare
to specifications (See "Engine Specifications", page
3.7).
CAMSHAFT / CAMSHAFT BORE
INSPECTION
1. After camshaft carrier is removed, lift camshaft from
cylinder head. Inspect all main journals and cam
lobes
as
described
specifications (See "Engine Specifications", page
3.7). Replace if worn beyond service limit or if any
surface is pitted or damaged.
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