Arctic Cat M 8000, Service Manual

Page: 98 / 210

97
CM043A
7. Lubricate the inner lips of the crankshaft oil seals
with grease; then slide the seals onto the crankshaft
making sure the spring side of each seal faces
inward.
8. Apply oil to the crankshaft bearings; then install the
crankshaft into the upper crankcase half. Be sure the
alignment hole in each bearing is positioned over its
respective retaining pin in the crankcase; then seat
the crankshaft.
IO019A

NOTE: To check the bearing for proper position,
place the point of a sharp tool into the dimple found in
the bearing race. Strike the tool with the palm of the
hand in either direction. If the bearing moves, it isn’t
positioned correctly and must be rotated until it drops
onto the retaining pin.
9. Position the two center seal rings with their end gaps
180° apart (up on one and down on the other); then
apply a thin coat of High-Temp Sealant to the entire
bottom half of the crankcase sealing surface.
CM036A
CM166
10. Assemble the crankcase halves making sure the
crankshaft gear and oil-injection pump driveshaft
gears mesh. Rotate the crankshaft one full turn to
align the crankshaft gear and pump driveshaft.
11. Install the crankcase cap screws securing the crank-
case halves.
12. Tighten cap screws (1-10) in two steps from 13 ft-lb
to 31 ft-lb using the pattern shown.
742-198A
13. Tighten cap screw (11) to 96 in.-lb; then turn the
engine right-side up and tighten cap screws (12-15)
in two steps to 25 ft-lb.
CAUTION
If the bearings are not properly seated during assembly,
the crankcase halves will not seal tightly and severe
engine damage will result.