Polaris ACE 900 2017 Service Manual page 117

2. Remove the cam chain tensioner
cylinder. Replace the sealing washer or gasket
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
r
guide and remove the assembly from the engine.
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
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from the 4. Remove the remaining two bolts that retain the front
e
camshaft carrier
camshafts.
5. Hold camshafts with an open-end wrench
remove the top bolt from the camshaft sprockets
6. Rotate the engine to allow access to the remaining
bolt on each camshaft sprocket
7. Remove the remaining bolt from each camshaft
sprocket.
8. Lift the chain and sprockets off the camshafts to
allow each sprocket to be removed.
9. Using a paperclip or other tool, hold cam chain up.
The crankcase has a built-in lower guide to prevent the
chain from falling off the crankshaft.
ENGINE / COOLING SYSTEM
t
and carefully lift the carrier off the
y
i
.
NOTICE
3
, and
u
.
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