2004 Ski-Doo Elite Factory Service Manual, Page 158Get this manual
Section 04 ENGINE Subsection 09 (ENGINE BLOCK)
CAUTION: Never forget thrust washers no18 on center of crankshaft to control axial adjustmentInsert thrust washers as soon as crankshaft is in place as per following illustration
R1503motr19A
1O-ring 2Crankshaft cover
R1503motr09A
THRUST WASHER INSERT DIRECTION 1Thrust washer
CAUTION: Thrust washers have to be flush with the engine block sealing surface1
CAUTION: Install crankshaft locking tool (PN 529 035 821) right away to position crankshaft at TDC before installing the camshaft and rockers (refer to CYLINDER HEAD AND VALVES)1