Polaris 2012 Sportsman Forest 500 International, Service Manual

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3.52
ENGINE
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
4. Loop the cam chain on the cam sprocket with the dots
on the sprocket facing outward and the alignment pin
notch facing directly upward.
5. Before positioning the sprocket on the camshaft,
check the position of the cam sprocket alignment pin.
When the cam is positioned properly, the cam
sprocket alignment pin (A) is directly in line with the
crankshaft / camshaft centerline (B).
6. Install the sprocket on the camshaft. Apply Loctite™
242
(PN 2871949) to the cam sprocket bolts and
torque to specifications.
7. Verify TDC mark in timing inspection hole and
alignment pin is directly in line with crankshaft to
camshaft centerline.
Refer to Illustration on the
following page.
8. Apply Crankcase Sealant (PN 2871557) to the
camshaft end cap and install using a new O-Ring.
9. Check all cam timing marks to verify proper cam
timing, and install the cam chain tensioner body with
a new gasket.
10. After tensioner installation, rotate engine at least two
revolutions and re-check marks/timing.
Cam Sprocket Bolt Torque:
6 ft. lbs. (8 Nm)
Pin Notch
A
B