1972 Ski-Doo Shop Manual, Page 40Get this manual
T,ansmiss;on
TORQUE CONVERTER
GENERAL
If engine power was transmitted directly to the drive axle, the Ski-Doo snowmobile would be able to move forward at fairly reasonable speedHowever, should the vehicle encounter bumps or rough terrain this method of trans mitting power would be insufficient to drive the vehicle over the hazardsTherefore, to provide the additional power strength (torque), the Ski-Doo snowmobile inc;orpOrates power trans mittal assembly consisting of drive pulley, driven pulley and drive beltTo explain the fundamentals of each component and the assem bly operation, we will follow the power line which is defined as follows(a) Power linedirection of the power obtained from the engine(b) Power take-offcrankshaft end(c) Drive pulleypulley assembly con nected to the engine crankshaft and