3
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
3.75
CRANKCASE BREATHER SERVICE
NOTICE
The crankcase breather is serviceable with the engine
assembled and installed in the vehicle chassis.
1. Remove the crankcase vent tube (if not already
performed).
2. Remove the two fasteners securing the engine
breather cover to the engine.
3. Remove the breather cover gasket and replace if
damaged.
4. For reassembly, thoroughly clean the crankcase and
breather cover mating surfaces. Install a new gasket
and torque the two fasteners to specification.
TORQUE
Crankcase Breather Cover Bolts:
9 ft-lbs (12 Nm)
CRANKCASE SEPARATION
NOTICE
Before the crankcase can be separated, be sure the
entire top end and oil pump assembly are removed
from the engine as outlined in this chapter.
1. Rotate the engine on the engine stand so the
magneto side is facing upward.
2. Remove the oil filter and the three fasteners
w
(20ft-
lbs (28Nm) apply loctite 272) that secure oil filter
adapter
q
to the crankcase. Discard O-rings and
through clean the adaptor for reassembly.
3. Remove and discard the fifteen flange bolts from
magneto side crankcase evenly in a criss-cross
pattern.
ENGINE / COOLING SYSTEM
To Next Page
Loading...
Need help?
General
