Arctic Cat M 8000, Service Manual

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CM156A
19. Remove the cap screw securing the water pump
impeller; then slide the impeller free of the shaft.
Account for the washer and gasket.
IO018A
20. Prior to turning the engine upside down, remove the
two crankcase cap screws (A) from the water pump
side of the engine; then remove the two cap screws
(B) from the magneto housing.
742-198B
21. Turn the engine upside down on support blocks, cut
the cable tie, and remove the coolant temperature
sensor switch.
22. With its bottom side up on two support blocks,
remove the cap screws securing the crankcase
halves.
23. Separate the crankcase halves by installing two
crankcase cap screws in opposite corners leaving the
heads approximately 1/4 in. out. Using a plastic ham-
mer and lifting on the ends of the crankshaft, tap on
each cap screw head until the case halves separate.
Remove the cap screws.
CM158
24. Lift the bottom half of the crankcase off the top half.
25. Lift the crankshaft free from the top half of the
crankcase and slide the crankshaft oil seals off the
crankshaft. Account for the C-ring (A). Remove the
bearing retaining pins (B) and account for the crank-
case dowel pins (C).
IO023A

NOTE: The end bearings are not pressed onto the
crankshaft. After removing the seals, use care not to
allow the bearings to slide off the crankshaft.
26. Remove the oil-injection pump/water pump drivesh-
aft from the lower crankcase half. Account for the
thrust washer on the outer end of the shaft.
CM159A
CAUTION
DO NOT drive any tool between halves to separate the
crankcase. Damage to the sealing surfaces will result.
CAUTION
Care must be taken to not allow the connecting rods to
drop onto the sealing surface of the bottom case half.