1983 Ski-Doo Shop Manual, Page 34Get this manual
SECTION 02 ENGINE SUB-SECTION 02 (277 ENGINE TYPE)
I BOTTOM END
7Crankcase half (Mag 2Crankcase half (PT0,) 3Polyamid ring, magneto side 4Polyamid ring, PT0side 5Dowel tube 77.B 75 mm (2) 6Lockwasher mm (5) 7Hexagonal bolt MB 74 (2) BHexagonal bolt MB 55 (3) 9Gasket 70Stud MB 775 (4) 77Crankshaft 72Distance ring PTOside 73Ball bearing 6306, PTOside 74Seal, PTOside 15Distance ring, magneto side 76Shim O7, 0.2, 0.3 or 0.5 mm 77Ball bearing 6305, magneto side 7BSeal, magneto side 79"Loctite 242" (blue, medium strength) 20Woodruff key