3
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
3.57
11. Lift the oil pump drive chain and remove the oil
pump.
12. Visually inspect the oil pump and drive sprocket
d
for wear or damage. Replace oil pump drive chain
and sprocket if worn or damaged. If any part of the oil
pump is damaged, the entire assembly must be
replaced. Replace the oil pump seal
f
during
crankcase assembly.
NOTICE
Oil pump assembly is non-serviceable
13. Rotate the engine so the cylinder is facing up.
14. Remove the eleven) M6
g
and two M8
h
upper
crankcase bolts.
15. Rotate the engine so the cylinder is facing down.
16. Remove the one M6
j
, eight M10
k
and two M8
l
lower crankcase bolts. Discard the eight M10 bolts.
17. Tap on the lower crankcase in reinforced areas with
a soft faced hammer to loosen. Carefully lift up and
remove the lower crankcase half.
ENGINE / COOLING SYSTEM
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