Arctic Cat 500 Sno Pro Operator's/Performance Manual page 54

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.
NOTE: At this point if the coolant temperature
sensor was removed, install the sensor (threads
coated with white Loctite #575). Tighten to 18 ft-lb.
NOTE: Use only Arctic Cat High-Temp Sealant to
seal the crankcase halves.
10. Assemble the crankcase halves making sure that 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
crankcase halves.
12. Tighten the 6 mm cap screws to 96 in.-lb and the
ten 10 mm cap screws in two steps from 13 ft-lb to
37 ft-lb using the pattern shown.
48
NOTE: After tightening the crankcase, turn the
engine right side up and tighten the four MAG-
housing cap screws in a crisscross pattern to 18
ft-lb.
CM036A
NOTE: Secure the connecting rods with rubber
bands on the cylinder studs.
13. Apply a thin coat of grease to the sealing surface
of the oil-injection pump/water pump driveshaft;
then place the Oil Seal Protector Tool at the end of
the shaft.
Be very careful not to damage the seals when install-
ing the oil pump driveshaft. Be certain to use the seal
installation tool. Twist the driveshaft clockwise as it
enters the seal area and while pushing it through the
FC071
seals.
14. Rotate the pump driveshaft while carefully push-
ing it through the pump seals until the driveshaft/
crankcase gears mesh; then remove the protector
tool (A) from the shaft.
CAUTION
0738-201
FS233A