Cylinder Head Installation - Black Bolts - Polaris RANGER 500 2018 Service Manual

CYLINDER HEAD INSTALLATION - BLACK
BOLTS
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. Verify the cylinder head bolts are BLACK. If
uncertain, measured bolts in the reduced diameter
portion of the bolt shank (between A and B); verify
the are the correct color and diameter before
proceeding.
MEASUREMENT
Diameter Between A - B:
q
Black: 9.00 +/- .1 mm
w
Silver: 8.20 +/- .1 mm
CAUTION
Torquing cylinder head bolts using the incorrect
procedure may lead to engine component damage.
2. 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.
r
3. Guide cam chain through a new head gasket
and install the gasket on the cylinder, locating it on
the alignment pins.
4. Carefully set the cylinder head
alignment pins.
NOTE
Install new cylinder head bolts.
9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
© Copyright Polaris Industries Inc.
5. Install and finger tighten the four new cylinder head
bolts
6. Install and finger tighten the two new outer M6 bolts
i
evenly.
7. Torque the new cylinder head bolts in sequence to
specification.
Torque The Outer M6 Head Bolts 89 ± 9 in-lbs
t
y
in place on
ENGINE / COOLING SYSTEM
u
evenly.
TORQUE
Cylinder Head Bolts:
Torque in sequence for all steps
Step 1: 21 ft-lbs (28 Nm)
Step 2: 26 ft-lb (35 Nm)
Step 3: Additional 135°
(10 ± 1 Nm)
3
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