Thursday, September 22, 2011

2003 polaris predator 500 cams?

I changed the head gasket and now I need to set the cams in the right way. If you know how to do that please tell me how to do that and what do the little marks on the gears mean?2003 polaris predator 500 cams?
This should answer your question



1. Remove ignition timing inspection plug from recoil

housing. To position crankshaft at Top Dead Center



(TDC) on the compression stroke.





2. Rotate engine slowly in the direction of rotation

watching intake valves open and start to close.

3. Continue to rotate engine slowly, watching for the

cam shaft sprocket marks and the %26quot;T%26quot; mark in the

timing inspection hole.

4. Align the %26quot;T%26quot; (TDC) mark on flywheel with the

indent in the inspection hole and the cam

sprockets marks (facing upward) aligned with the

dots at the 12 o'clock and 9 o'clock positions.

NOTE:

The cam lobes should be laying flat and

the valves have clearance at thispoint.









Place the thrust washer on to the crankshaft with

the chamfered side in ward. Install the crankshaft

cam sprocket onto the shaft. Note the double

spline for ease of installation. The alignment mark

should face outward.

Position the chain for correct timing by aligning the bottom cam timing

mark with the brass colored bottom chain link.

Keep tension on the chain so as to not lose chain

alignment at the crankshaft sprocket during cam

installation.

5. Next, install the intake cam, positioning the upper

cam chain for correct timing by aligning the

remaining brass colored chain link with the 12

o'clockdotonthecamsprocket. Timing is in phase

when all three brass colored cam chain links align

with all three sprocket timing marks and the

secondary cam gear marks are at approximately

the 9 o'clock position,with the exhaust cam timing

mark slightly advanced.







NOTE: Failure to align marks in this fashion will

cause valve---to---piston interference, resulting in engine damage