Camshaft Timing Using Flywheel - Polaris RANGER RZR 170 Service Manual

ENGINE
Camshaft Installation - Timing Method 2 
Reference Illustration Page 3.44
Stator housing is installed. NOTE: Use this method only
when the stator is installed and cam shaft drive sprocket
is in view.
1. Rotate the crankshaft until the single (TDC) timing
mark (Top Dead Center) on the flywheel is view in the
center of the timing inspection window. Be sure to use
the single TDC mark when installing the cam. Do not
use any advance marks (if evident).
2. Align the cam chain onto the teeth of the cam chain
drive sprocket. Use a wire to pull the chain up through
the cylinder and cylinder head and to hold it in place.
Secure the chain. Secure and maintain tension so that
the chain does not fall off the crankshaft sprocket.
Single TDC Mark Aligned
TDC Mark
Rotation
3.44
Method 2 - Camshaft Timing Using Flywheel TDC Mark
Cam Timing
(View through timing inspection hole)
Position crankshaft at TDC
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.
3. Apply engine assembly lubricant to the camshaft main
journals and cam lobes. Lubricate automatic
compression release mechanism with clean engine
oil.
4. Orientate the camshaft for installation with the lobes
facing downward.
5. Disconnect the wire securing the cam chain and loop
the cam chain over the sprocket while verifying the
cam is inserted with the alignment marks parallel to
the gasket surface.
6. Check all cam timing marks to verify proper cam
timing, and install the rocker arm assembly. Torque
the cylinder stud nuts to specification.
NOTE: Do not rotate engine until tensioner and
rocker assembly is installed.
7. Install the tensioner. Torque fasteners to specification.
8. After tensioner installation, rotate engine at least two
revolutions and re-check marks/timing.
Sprocket marks aligned
with gasket surface at
TDC on compression stroke
(cam lobes facing downward)