1997 Ski-Doo Factory Shop Manual Volume Two, Page 92Get this manual
Section 03 ENGINE Sub-Section 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
Measuring (on bench)
Once engine is disassembled, check crankshaft deflection on V-shaped blocksIf deflection exceeds the specified tolerance, it can be worn bearings or bent crankshaftRemove crankshaft bearings and check deflection again on V-shaped blocks to determine the defective part(s)See measurement in following illustration
' rectly measured between centers of latheCONNECTING ROD BIG END AXIAL PLAY
ENGINE TYPE 443 and 503 454, 494, 583 and 670 NEW PARTS MIN MAX0.20 0.53 mm (.008 .021 in) 0.40 0.75 mm (.016 .029 in) WEAR LIMIT 1.00 mm (.039 in) 1.20 mm (.047 in)
NOTE: Crankshaft deflection can not be cor-
If the deflection exceeds the specified tolerance, crankshaft should be repaired or replaced
Using feeler gauge, measure distance between thrust washer and crankshaft counterweightIf the distance exceeds specified tolerance, repair or replace the crankshaft.A01C0RA