3
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
3.41
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.
4. Remove the remaining two bolts that retain the front
camshaft carrier
t
and carefully lift the carrier off the
camshafts.
5. Hold camshafts with an open-end wrench
y
, and
remove the top bolt from the camshaft sprockets
u
.
6. Rotate the engine to allow access to the remaining
bolt on each camshaft sprocket
i
.
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.
NOTICE
The crankcase has a built-in lower guide to prevent the
chain from falling off the crankshaft.
ENGINE / COOLING SYSTEM
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