2004 Bombardier Quest/Traxter Series Shop Manual, Page 66Get this manual
Section 03 ENGINE QUEST Subsection 02 (TROUBLESHOOTING)
CRANKSHAFT AND BALANCER SHAFT
SYMPTOM CONDITION TestInspection UNUSUAL ENGINE NOISE ANDOR VIBRATIONSNORMAL USE1Check for possible plain bearing failureaOil pressure is out of specified valuesReplace damaged parts (refer to LUBRICATION)bConnecting rod small end bearing is damaged andor out of specificationReplace damaged andor worn out part(s)cConnecting rod big end clearance is out of specificationReplace damaged andor worn out part(s)dCrankshaft plain bearing MAGPTO side is damaged andor out of specificationReplace crankshaft and plain bearing MAGPTO at the same time (refer to CRANKSHAFT)2Check ball bearing(s) on balancer shaft end(s)aBall bearing(s) do(es) not move freelyReplace bearing(s)3Check that mark on balancer shaft is aligned with crankshaft position markaMark on balancer shaft and crankshaft are not alignedReadjust position of balancer shaft and crankshaft (refer to CRANKSHAFTBALANCER SHAFT)4Check thrust washer(s) on crankshaft MAGPTO sideaThrust washer(s) is(are) missing on MAG andor PTO sideFit thrust washer(s)