2000 Polaris Indy 500 / 600 snowmobile service manual, Page 107Get this manual

2000 Polaris Indy 500 / 600 snowmobile service manual, Page 107

ENGINES General Inspection Procedures Crankcase InspectionBearing Fit
Any time crankshaft bearing failure occurs and the case is to be reused, Polaris recommends checking the bearing fit into the case halves using the following procedure1With case halves cleaned, press replacement bearing into each of the main bearing journals to determine basic amount of press fitNOTE: Do comparison check of all journals by manually forcing the bearing into the bearing seats noting if any are noticeably loose or tightNormal hand installation will be an indication of the recommended interference fitIf the bearing falls out of the case when the case is inverted, or if the crankcase bearing surface is severly galled or damaged, the case should be replacedCrankcase Bearing Interference Fit: C-3.0006 (.015mm) C-4.001 (.025mm)