Polaris ACE 900 2017 User Manual

3.40
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
ENGINE DISASSEMBLY / INSPECTION - TOP END
VALVE COVER REMOVAL
NOTICE
The valve cover can be removed with the engine
installed in the chassis.
1. Remove the four valve cover shoulder bolts
q
and
isolators
w
using a T40 driver.
NOTICE
Replace rubber isolators upon assembly.
2. Remove valve cover and valve cover seal. Replace
isolators and valve cover seal
e
if oil leaks are
evident.
3. Remove the spark plugs
r
. Stuff spark plug holes
with clean shop towels to prevent any debris from
falling into the combustion chamber.
CAMSHAFT REMOVAL
NOTICE
The camshafts can be removed with the engine
installed in the chassis.
1. Rotate the engine so the PTO cylinder is at Top
Dead Center (TDC) to relieve most of the valve
spring pressure. The camshaft lobes should face out
and the slots on the end of the camshafts should line
up
q
.
ENGINE / COOLING SYSTEM

Polaris ACE 900 2017 Specifications

General

Brand	Polaris
Model	ACE 900 2017
Category	Offroad Vehicle
Language	English