1985 Ski-Doo snowmobile Service Manual, Page 62Get this manual
Section 02 ENGINE Sub-section 03 (377 ENGINE TYPE)
7B 97071 12 137415
Stud MB 773 IB) Upper crankcase Rubber plug (5) Cable grommet 011 seal side Ball bearing 6206 (2) Shim (2) Spacer Crankshaft Woodruff key 3,7 Loclile 242 Ball bearing 6207 Oil seal, magnelo side Lock washer 22 mm Loclile 242
7617 lB19 20 21 22 23 24 25 26
HexNul 22 7,5 O-ring Lower crankcase Locllte 515 Lock washer mm (10) Hexscrew MB 45 (2) Locl1te 242 Stud Ml0 25 (41 Lock washer 10 mm 141 Hexnul Ml0 (41 Hexscrew MB 70 IBI Lad washer mm IBI Hexscrew M6 40 (41 Allen screw M6 30 (4) Rmg gear
CLEANING
Discard all seals, gaskets and O-ringsClean all metal components in non-ferrous metal cleaner Remove old sealant from crankcase mating surfaces with Bombardier sealant tripper, CAUTION: Never use sharp object to scrape away old sealant as score marks incurred are detrimental to crankcase sealing
INSPECTION
The inspection of the engine bottom end must include the following measurements:
TOLERANCES FITTING NEW PARTS (MAX (MIN