3.45
ENGINE
3
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.
Rocker Arm / Shaft Assembly
1.
Apply engine assembly lube to all components and
assemble the arms, shafts and decompression
components into the rocker assembly.
IMPORTANT: Install rocker shafts in their correct
positions. The exhaust side shaft is shorter and is
held in place by the cylinder stud. The intake side
shaft has a ‘half-moon’ section that aligns with the
cylinder stud to hold it in place.
2.
Apply engine lube to the shafts and cam follower
surfaces.
Rocker Assembly Installation
1.
Apply engine lube to all components and assembly
arms, shafts and decompression components of the
rocker assembly.
2.
Verify the cam is still in the TDC position before
installing the rocker assembly onto the cylinder studs.
3.
Install cylinder head nuts and torque to specification.
4.
Torque the cylinder base screws to specification.
5.
Adjust valves according to the “VALVE CLEARANCE
ADJUSTMENT” procedures.
6.
Install valve cover and secondary air assembly with
new gaskets. Torque bolts to specification.
Intake
Exhaust
= T
Cylinder Head Nut:
18 ft-lbs (25 Nm)
= T
Valve Cover/ Secondary Air Pipe Bolt:
7-8 ft-lbs (9-11 Nm)
Torque in 3 step cross pattern
5
6
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