3
9926813 R04 - 2013-2016 RZR 570 Service Manual
© Copyright Polaris Industries Inc.
3.59
CYLINDER INSTALLATION
1. Clean base gasket sealing surface on cylinder and
crankcase to remove all oil, grease, or old sealant.
2. Install a new base gasket.
NOTE
Base gasket and surfaces must be DRY and oil free.
Use care upon assembly to keep oil away.
3. Slide a commercially available Piston Support Block
under piston skirt to support piston during cylinder
installation.
4. Apply clean engine oil to cylinder bore and bottom
tapered portion of cylinder sleeve.
5. Verify all ring end gaps are correctly located on
piston. Place cam chain and guides in alignment with
chain room.
6. Carefully compress rings with fingers or
commercially available spring compression tool and
install cylinder with a slight front to back rocking
motion until all rings are captive in cylinder and past
the taper of the sleeve.
7. Remove support block and ring compressor.
8. Push cylinder downward until fully seated on base
gasket.
9. Hold the cylinder in place and rotate the engine and
position the piston at TDC.
NOTE
If cam chain and flywheel are installed (top end work
only is being performed) hold cam chain tight while
rotating the engine to avoid damage to the chain, drive
sprocket teeth, or tensioner blade.
CYLINDER HEAD ASSEMBLY
NOTE
Assemble the valves one at a time to maintain proper
order.
WARNING
Wear eye protection during cylinder head disassembly
and reassembly or when working with the valve springs.
1. Apply engine oil to valve guides and seats.
2. Lubricate the valve stems with clean engine oil.
3. Install the valve
q
in the cylinder head, through the
guide.
4. Carefully install a new valve seal
w
on the valve
guide with a rotating motion. Push firmly until seated
in retaining groove and square with the guide
5. Dip the seat
e
, valve spring
r
and retainer
t
in
clean engine oil.
6. Install the valve spring seat
e
.
ENGINE / COOLING SYSTEM
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