Snowmobile Arctic Cat (2007 year). Manual - part 23

2-77

2

AO328

„ NOTE: Carefully rotate the crankshaft several
times to make sure there is no binding and that no
valves are making contact with the pistons. 

40. Using a suitable driving tool, install the oil seal

into the timing chain cover making sure the

spring side of the seal is directed toward the

engine.

„ NOTE: Make sure to lubricate the lips of the seal
with grease prior to installing.

41. Place the metal ring in the second hole in from

the crankcase side with the chamfer facing out

away from the timing chain cover.

MD1498

42. Coat the sealing surface of the timing chain

cover, along with the two center bosses and the

flanged area of the center cap screw, with Seal-

ant (p/n 1048-044); then install the cover, alter-

nator adjustment bracket, and wiring harness tab

on the crankcase. Tighten the 6 mm cap screws

to specifications and the 8 mm cap screws to

specifications. Install the intake cam timing sen-

sor onto the timing chain cover.

AO329A

MD1490

„ NOTE: Use blue Loctite #243 on the two center
cap screws. 

„ NOTE: Note the position of the alternator adjust-
ment bracket, wiring harness tab, and intake cam
timing sensor from disassembling. 

MD1663A

43. Install the oil pickup tube and three cap screws.

Tighten the cap screws to specifications.

2-78

AO209

44. Coat the sealing surface of the oil pan with

Sealant (p/n 1048-044); then install. Tighten the

cap screws and nuts to specifications. 

AO330

AO331

0738-515

45. Lightly coat the cylinder head side of the valve

cover sealing surface with Sealant (p/n 1048-

044); then place the valve cover, the three inner

gaskets, and one outer gasket into position on

the cylinder head. Install six cap screws. Using

the pattern shown, tighten the cap screws to

specifications.

AO332

„ NOTE: All three of the inner gaskets have an
alignment tab, but only the tab on the middle gas-
ket aligns with a mounting hole. 

MD1652A

MD1458

2-79

2

MD1630A

46. Install the PTO adapter, ring gear, ring gear

washer, and six cap screws. Tighten the six cap

screws to specifications.

MD1657

MD1611

MD1612

MD1740

47. Install the crankshaft pulley over the crankshaft

key.

AO333

48. Install the crankshaft pulley cap screw and

tighten  to specifications.

MD1661

49. Install the starter plate and secure it in place

with the bottom cap screw and nut; then install

the ring gear shield and the remaining three cap

screws and one nut. Tighten the cap screws and

nuts to specifications.

2-80

MD1613

50. Install a new water pump housing O-ring. 

AO278A

51. Coat the water pump sealing surface with Seal-

ant (p/n 1048-044); then install the water pump.

Tighten the cap screws to specifications.

AO208

52. Install the thermostat housing and new gasket. 

MD1472

AO334A

AO335

53. Install the thermostat housing with thermostat

and thermostat outlet pipe. Install the cap screw

and the two lock nuts. Tighten to specifications.

! CAUTION

Care must be taken that the bleed hole on the ther-
mostat aligns with the arrow on the housing.