2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 98Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 98

ENGINE Bearing Installation NOTE: To ease bearing installation, warm the crankcase until hot to the touchPlace the bearings
all bearings are firmly seated in both the Mag and PTO crankcase2Measure the distance from the PTO crankcase mating surface
to the main bearing using dial caliper and straight edge End Play InspectionAdjustment Before reassembling the crankcase
the following steps should be performed to determine the amount of crankshaft, counter balancer shaft, and pump shaft end
play: Excessive end play may cause engine noise at idle and slow speedsToo little play will side load the bearings which