Polaris ACE 900 2017 Service Manual page 133

11. Lift the oil pump drive chain and remove the oil
pump.
12. Visually inspect the oil pump and drive sprocket
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
crankcase assembly.
NOTICE
Oil pump assembly is non-serviceable
13. Rotate the engine so the cylinder is facing up.
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
14. Remove the eleven) M6
crankcase bolts.
d 15. Rotate the engine so the cylinder is facing down.
16. Remove the one M6
lower crankcase bolts. Discard the eight M10 bolts.
f
during
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
g h
and two M8
j k
, eight M10 and two M8
upper
3
l
3.57