1986 Ski-Doo Factory Shop Manual, Page 154Get this manual
Section 02 ENGNE Sub-section 07 (503 ENGINE TYPE)
CranKcase iower naif
2 Crankcase upper half 3, Lack washer mm 1,4 4Screw M8 70 fB!
5Screw MB
8Loctite 515
7b 6all bearing 6207 16a-ring
17 Seal mag Side 18Woodruff key 79 loctte 242 20Stud MfO 42 (4)
.7Stud M8 173 IB} 8Cable grommel 9Rubber plug 5J
10 Crankshaft
21 lock washer 10 mm 141 22 Hexagonal nllt MIO (4J 23Distance sleeve (4)
24 Loctite 242 (blue) 25Lack washer 22 mm 26Hexagonal nut 22 ,I( 27 Loctire 242
1 ,Ball be8f1ng 6206 (2) 12 Slllm mm 121
73, Spacer
CLEANING
Discard all seals, gaskets and O-ringsClean all metal components in non-ferrous metal clean-
INSPECTION
The inspection of the engine bottom end must include the following measurements: