3.80
9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
© Copyright Polaris Industries Inc.
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.
CAUTION
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 INSTALLATION
NOTE
Head gasket and surfaces must be DRY and oil free.
Use care during assembly to keep oil and finger prints
off of gasket.
1. Prepare cylinder head gasket sealing surfaces by
cleaning thoroughly to remove all residue. The new
head gasket must be installed clean and dry, free
from oil or grease.
NOTE
Do not touch sealing surfaces of the new head gasket.
2. Guide cam chain
r
through a new head gasket
t
and install the gasket on the cylinder, locating it on
the alignment pins.
3. Carefully set the cylinder head
y
in place on
alignment pins.
NOTE
Install new cylinder head bolts.
4. Install and finger tighten the four new cylinder head
bolts
u
evenly.
5. Install and finger tighten the two new outer M6 bolts
i
evenly.
6. Torque the new cylinder head bolts in sequence to
specification.
ENGINE / COOLING SYSTEM
To Next Page
Loading...
