Cam Chain And Guide Service; Cylinder Head Removal - Polaris RANGER 500 2018 Service Manual

ENGINE / COOLING SYSTEM

CAM CHAIN AND GUIDE SERVICE

The crankcase has a removable lower cam chain drive
guide that prevents the chain from disengaging the
crankshaft during engine service.
The cam chain, cam chain guides and cam chain
tensioner can be replaced with the engine installed in
the vehicle.
1. If not already performed, remove the valve cover,
stator cover, flywheel, cam chain tensioner, cam
carrier and camshafts as outlined in this chapter.
2. Remove the two fasteners
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chain guides to the crankcase.
3. Remove the fastener
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chain guide to the crankcase.
4. Inspect the cam chain guides and replace if
excessive wear is evident.
5. Upon installation, torque all fasteners to specification
and reassemble engine and vehicle as outlined in
this chapter.
TORQUE
Upper Cam Chain Guide Fasteners:
7 ft-lb (10 Nm)
3.156
NOTE
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that secure the cam
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that secure the lower cam

CYLINDER HEAD REMOVAL

The cylinder head can be serviced with the engine
installed in the chassis.
Do not rotate head assembly up side-down until the
valve tappets have been removed.
1. Remove and discard the two outer M6 bolts
retain the cylinder head
2. Loosen the four cylinder head bolts
turn (60 degrees) at a time until all are loose.
3. Remove and discard the cylinder head bolts
Replace with new upon assembly.
4. Tap cylinder head lightly with a soft faced hammer
until loose. Tap only in reinforced areas or on thick
parts of the cylinder head casting.
5. Remove the cylinder head
9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
NOTE
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and the cylinder.
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evenly 1/8
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and head gasket
© Copyright Polaris Industries Inc.
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