Arctic Cat Sno Pro 500 Operator's Manual page 55

4. Using the seal driver, carefully install the outer
water pump seal. Gently tap the seal down into
position until it seats itself against its flange.
5. Position the upper crankcase half upside-down on
two wooden blocks; then install the C-ring, the
four bearing retaining pins, and the two crankcase
dowel pins.
6. Place the PTO-side crankshaft bearing into posi-
tion making sure the bearing retaining pin hole is
positioned inward.
NOTE: The bearing retaining pin hole is the hole
that does not go entirely through the bearing case.
7. Lubricate the inner lips of the crankshaft oil seals
with grease; then slide the seals onto the crank-
shaft making sure the spring side of each seal faces
the center of the crankshaft.
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 posi-
tioned over its respective retaining pin in the
crankcase; then seat the crankshaft.
 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
MS988
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.
If the bearings are not properly seated during assem-
bly, the crankcase halves will not seal tightly and
severe engine damage will result.
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 Seal-
ant to the entire bottom half of the crankcase seal-
ing surface.
CM043A
CAUTION
CM045A
CM036A
FC071
49