Arctic Cat M 8000, Service Manual

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FC034
22. Lift the bottom half of the crankcase off the top half.
23. 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. Remove the
bearing retaining pins and account for the crankcase
dowel pins.

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.
24. 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

NOTE: When replacing the inner water pump seals,
use the recommended Water Pump Bearing and Seal
Tool Kit only.
25. Place the crankcase on the bench with the water
pump side down. Using the long seal driver, drive the
mechanical water pump seal from the crankcase.
FC036
26. Using a pair of snap ring pliers, remove the snap ring
securing the inner seal in the crankcase.
27. Using the hooked end of the tool, pull the inner seal
free of the crankcase.
28. Using the hooked end of the tool, pry the seal ring
from the backside of the water pump impeller.
AN327D
Cleaning and Inspecting
CYLINDER HEAD
1. Using a non-metallic carbon removal tool, remove
any carbon buildup from the combustion chambers
being careful not to nick, scrape, or damage the com-
bustion chambers or the sealing surfaces.
2. Inspect the spark-plug holes for any damaged
threads.
3. Inspect the cylinder head for flatness using a
straightedge and a feeler gauge. Acceptable warpage
must not exceed 0.002 in.

NOTE: If the warpage exceeds specification, resur-
face the cylinder head using procedures identified in
step 4.
CAUTION
Care must be taken to not allow the connecting rods to
drop onto the sealing surface of the bottom case half.