Polaris A07MH50AX Offroad Vehicle User Manual


 
3.16
ENGINE
4. Measure I.D. of each rocker arm and compare to
specifications.
5. Measure I.D. of both rocker arm shaft supports and visually
inspect surface. Compare to specifications.
6. Subtract rocker shaft O.D. from rocker arm & shaft support
I.D. This is the oil clearance. Compare to specifications.
7. Inspect rocker adjuster screws for wear, pitting, or damage
to threads of the adjuster or locknut. Replace all worn or
damaged parts. NOTE: The end of the adjuster screw is
hardened and cannot be ground or re-faced.
Camshaft Removal
1. Remove thermostat housing.
2. Remove camshaft sprocket inspection cover.
3. Loosen three camshaft sprocket bolts.
4. Remove camshaft end cap and O-Ring.
5. Inspect camshaft end cap (thrust face) for wear. Replace if
worn or damaged.
6. Place a clean shop towel in the area below cam chain
sprocket and remove sprocket retaining bolts.
7. Slide camshaft inward to allow removal of cam sprocket
and remove sprocket from camshaft and chain.
Rocker Shaft Oil Clearance:
Std: .0008 - .0021 (.020-.054 mm)
Limit: .0039” (.10 mm)