1974 Ski-Doo Shop Manual, Page 100Get this manual
' REMOVAL
Remove or disconnect the following then lift engine out of vehicle
Front-mounted engine
Drive belt Muffler Rewind starter Air silencer Choke cable Throttle cable Fuel lines at carburetor Note: Secure fuel line to steering support so that the opened ends are higher than the fuel tank Electrical connector Caution: On electric start model, disconnect negative cable (ground) from battery post before disconnecting other wires Engine mount nuts
bearing and ease inS,taliation, Install bearings with groove outward Crankshaft end-play is adjusted with shim(s) located between crankshaft and magneto side bearing To determine correct amount of shim(s), proceed as follows Remove magneto side bearing and existing shim(s)Slide the appropirate crankshaft ring and the retaining disc on the crankshaft, (See Tool Section)Position crankshaft assembly into crankcase lower half, Make sure that retaining washers are correctly seated in th grooves Gently tap crankshaft counterweight until P.T .Oside bearing bears against retaining discAny free-play between the crankshaft ring and magneto side retaining disc minus recommended end-play is the distance to be covered by shim(s)Shims are availabl in thickness of .1 mm.004", .02 mm.008", .3 mm.012", .5 mm.020", mm.039"