1989 Ski-Doo Repair Manual, Page 212Get this manual
Section 02 ENGINE Sub-section 09
(ENGINE DIMENSION MEASUREMENT)
CRANKSHAFT DEFLECTION
ENGINE TYPE
All engines
(TYPICAL)
MAXIMUM
0 .08 mm (0.0031 in)
Crankshaft deflection is measured each end with dial indicatorFirst, check deflection with cranckshaft in engineIf deflection exceeds the specified tolerance, it can be either ball bearing wear or bent crankshaftRemove crankshaft bearings and check deflection again on V-shaped blocks as illustrated
CRANKSHAFT END-PLAY
247 Engine type
ENGINE TYPE
Adjustment
Measure Cit mm (fl4 in) fmm the edge Measure behind the key
MINIMUM
0 .10 mm ('004 in)
MAXIMUM
0.30 mm 1.012 in)