Polaris ACE 900 2017 User Manual

3
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
3.83
CYLINDER HEAD INSTALLATION
1. If necessary, rotate the engine so the cylinder is
facing up.
2. If installed, remove the Cylinder Holding & Camshaft
Timing Plate
q
from the cylinder.
NOTICE
Once the cylinder head is removed, nothing retains the
cylinder to the engine. DO NOT rotate the engine
without using the Cylinder Holding & Camshaft Timing
Plate (PU-50563).
3. Prepare cylinder head gasket sealing surfaces by
cleaning thoroughly to remove all residue. The head
gasket must be installed clean and dry, free from oil
or grease.
NOTICE
Do not touch sealing surfaces of gasket.
4. Guide cam chain
w
through a new head gasket
e
and install the gasket on the cylinder, locating it on
the alignment pins.
5. Carefully set the cylinder head
r
in place on
alignment pins.
6. Install new bolts and finger tighten the six cylinder
head bolts
t
evenly.
7. Install and finger tighten the two outer M6 bolts
y
evenly.
NOTICE
Install new cylinder head bolts.
8. Torque cylinder head bolts in sequence to
specification.
TORQUE
Cylinder Head Torque Procedure:
Torque in sequence:
Step 1: 9 ft-lbs (12 Nm)
Step 2: 26 ft-lb (35 Nm)
Step 3: Additional 180°
Step 4: M6 bolts: 7 ft-lb (10 Nm)
ENGINE / COOLING SYSTEM

Polaris ACE 900 2017 Specifications

General

Brand	Polaris
Model	ACE 900 2017
Category	Offroad Vehicle
Language	English