Cam Chain / Tensioner Blade; One Way Valve - Polaris Ranger 500 2x4 2007 Service Manual

ENGINE
6. Remove oil passage O-Ring (C).
7. Remove large sealing O-Ring from outer edge of stator
plate.

Cam Chain / Tensioner Blade

1. Remove bolt securing tensioner blade to crankcase (D).
D
2. Remove blade and inspect for cracks, wear, or damage.
3.34
3.
C
4.
NOTE: The slotted nut is a left hand thread.
5.
6.
7.
8. Replace any worn or damaged parts.

One Way Valve

The one way valve prevents oil from draining out of the oil tank
and into the crankcase when the engine is off. It must be clean
and have adequate spring pressure in order to seal properly.
1.
2.
Remove cam chain (E). Inspect chain for worn or missing
rollers or damage. Stretch chain tight on a flat surface and
apply a 10 lb. (4.53 kg) load. Measure length of a 20 pitch
section of chain. Replace if worn past service limit.
Chain Service Limit:
5.407" (13.7 cm)
Using the special socket, remove the crankshaft slotted nut.
Remove cam chain drive sprocket and woodruff key from
crankshaft.
Inspect sprocket teeth for wear or damage.
Inspect woodruff key for wear.
Remove cap bolt (A), sealing washer (B), spring (C), and
one way valve (D) from PTO side crankcase.
D
C
Inspect free length of spring and check coils for distortion.
One Way Valve Spring Free Length:
Std: 1.450" (3.68 cm)
E
A
B