Arctic Cat Sno Pro 120 Service Manual page 150

18. Secure the separator plates to the lower crankcase
using the cap screws (coated with blue loctite #243);
then using the pattern shown, tighten to 84 in.-lb.
19. Install the crankshaft and counterbalancer bearing
halves to the lower crankcase; then apply a light film
of engine-assembly grease to the bearing surfaces.
 NOTE: Make sure the bearings are properly seated
to the grooves of the crankcase.
20. Using Three Bond Sealant, apply a light film of seal-
ant onto the sealing surfaces of the upper and lower
engine cases.
21. Install the lower crankcase half to the upper engine
case; then verify the cases are properly seated
together.
22. Install the 10 mm, 8 mm, and 6 mm cap screws into
the proper locations in the crankcase; then with the
torque pattern shown as numbered on the case,
tighten the cap screws only until snug.
2-130
ZJ042A
23. For initial tightening of the engine case cap screws,
use this sequence:
A. Cap screws 1-6 (10 mm) to 13 ft-lb.
B. Cap screws 7-24 (8 mm) to 120 in.-lb.
C. Cap screws 25-28 (6 mm) to 96 in.-lb.
24. For final tightening of the engine case cap screws,
use this sequence:
A. Cap screws 1-6 to 33 ft-lb.
B. Cap screws 7-24 to 19 ft-lb.
ZJ042B  NOTE: Cap screws 25-28 have only the one torque
value.
 NOTE: After the tightening sequence, rotate the
crankshaft one revolution to verify free movement.
25. With a new O-ring, install the oil cooler, washer, and
the union bolt; then tighten to 52 ft-lb.
741-737A
26. With a new gasket, install the oil pan and install the
different-length cap screws (as noted in disassem-
bling). Using the pattern shown, tighten the cap
screws to 84 in.-lb.
741-582A
ZJ077