Cam Chain Tensioner Installation; Intake Valve Clearance Adjustment; Exhaust Valve Clearance Adjustment - Polaris RANGER RZR 170 Service Manual

ENGINE

Cam Chain Tensioner Installation

1. Using a small flat blade screwdriver, turn the
tensioner clockwise to retract the plunger (B) all the
way into the tensioner body.
B
A
2. Keeping the plunger retracted, install the tensioner
assembly with a new gasket and tighten the bolts to
specification.
Tensioner Bolt and Cap:
5-7 ft-lbs (7-9 Nm)
3. Release the tensioner and install the tensioner cap.
Torque cap to specification.
4. Slowly rotate engine two to three revolutions and re-
check cam timing once chain is tight.
3.46
= T
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.

Intake Valve Clearance Adjustment

1. Remove the valve cover and secondary air pipe
assembly.
2. Verify cam lobes are pointed down.
3. Insert the correct thickness feeler gauge between end
of intake valve stem and adjuster screw.
4. When clearance is correct, hold adjuster screw and
tighten locknut securely.
5. Re-check the valve clearance.
6. Repeat adjustment procedure if necessary until
clearance is correct with locknut secured.
Valve Clearance:
.003" (.07 mm)

Exhaust Valve Clearance Adjustment

1. Remove the valve cover and secondary air pipe
assembly.
2. Verify cam lobes are pointed down.
3. Insert the correct thickness feeler gauge between end
of exhaust valve stem and adjuster screw.
4. Loosen locknut and turn adjuster screw until there is
a slight drag on feeler gauge.
5. When clearance is correct, hold adjuster screw and
tighten locknut securely.
6. Re-check the valve clearance.
7. Repeat adjustment procedure if necessary until
clearance is correct with locknut secured.
Valve Clearance:
.003" (.07 mm)
= In. / mm.
= In. / mm.