3.108
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
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.
NOTICE
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.
NOTICE
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 IDENTIFICATION
The first image displays the cylinder head
q
for 2015
and earlier models. The second image displays the
cylinder head
w
for 2016 and later models.
ENGINE / COOLING SYSTEM
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