1984 Ski-Doo Shop Manual, Page 57Get this manual
SECTION 02 ENGINE SUB-SECTION 03 (377 TYPE)
789707772
Hexnut M8 (5) Distance nut M8 27,5 (3) Washer (B) Cylinder head (2) Gasket, cylinder head (2) Suppon damper (7Cylinder (2) Gasket, intake manifold (4) Intake manifold (7Lock washer mm (2) Hexscrew M8 40 (2) Lock washer mm (2)
737475767 77B792027222324
Hexscrew MB 74 (2) Hexscrew M6 25 (2) Lock washer mm (2) Intake cover (7Rubber ring (7) Gasket, cylinder flange (2) Semi-trapez ring (2) Rectangular ring (2) Piston (2) Gudgeon pin (2) Orclip (4) Needle cage (2)
CLEANING
Discard all gasketsClean all metal components in non-ferrous metal cleanerScrape off carbon formation from cylinder exhaust port, cylinder head and piston dome using wooden spatulaMEASUREMENTS
TOLERANCES FITTING NEW PARTS (MIN (MAX WEAR LIMIT
Cylinder taper Cylinder out of round Cylinderpiston clearance RingPiston groove clearance Ring end gap
N.AN.A.OS mm (0031 ")
NA N.A.10 mm 10039") .11 mm (0043") .35 mm (0138")