Engine Bottom End Disassembly; Cam Chain Guide And Tesioner Blade; Piston Removal - Polaris Hawkeye Repair Manual

ENGINE BOTTOM END DISASSEMBLY

Cylinder Removal
Follow engine disassembly procedures to remove valve
cover, camshaft and rocker arms, and cylinder head.
1. Lift to remove cam chain guide at front of cylinder.
2. Remove the two 6 mm cylinder base bolts.
3. Tap cylinder lightly with a plastic hammer in reinforced
areas only until loose.
4. Rock cylinder forward and backward and lift it from the
crankcase, supporting piston and connecting rod.
Support piston with Piston Support Block (PN
2870390).

CAM CHAIN GUIDE AND TESIONER BLADE

The guide can be removed after cylinder head is
1.
removed by pulling it upward out of the channel in the
crankcase.
Remove blade and inspect. Replace if worn., cracked,
2.
or damaged.
Tensioner blade removal requires recoil, flywheel, and
3.
stator plate removal. Refer to lower end service
procedures to access the bolt securing the tensioner
blade to the crankcase.
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PISTON REMOVAL

1. Remove one circlip. Note valve pocket on intake side
2. Remove piston circlip and push piston pin out of
3. Remove the compression rings, starting with the top
*Using a piston ring pliers: Carefully expand ring and lift
it off the piston. CAUTION: Do not expand the ring more
than the amount necessary to remove it from the piston,
or the ring may break.
*By hand: Placing both thumbs at end gap, carefully
spread the ring open and lift ring over piston at the
opposite side. Use care to not scratch the ring lands.
4. Repeat procedure for second ring.
5. The oil control ring is a three piece design consisting
of piston for installation.
piston. If necessary, heat the crown of the piston
slightly with a propane torch. CAUTION: Do not apply
heat to the piston rings. The ring may lose radial
tension.
ring.
of a top and bottom steel rail and a center expander
section. Remove the top rail first followed by the
bottom rail and expander.
ENGINE
3.25