9929375 R02 - 2016-2019
GENERAL
/
GENERAL 4
Service Manual
© Copyright Polaris Industries Inc.
3.35
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.
2.
Replace isolators
w
when they are removed and
replace valve cover seal
e
if oil leaks are evident.
3.
Remove the spark plugs
r
. Stuff spark plug holes
with shop towels to prevent anything 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
q
and the slots on the end of the camshafts should
line up.
2.
Remove the cam chain tensioner
w
from the
cylinder. Replace the sealing washer or gasket
e
upon reassembly.
NOTICE
The engine may have a hydraulic (first image) or
mechanical (second image) cam chain tensioner.
3.
Remove the two bolts retaining the fixed cam chain
guide
r
and remove the assembly from the engine.