2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 87Get this manual
ENGINE 5Measure the connecting rod big end radial clearanceBig End Radial Clearance: Std: .0004-.0015 (.011-.038 mm) Limit: .0020 (.05 mm)
PUMP SHAFT OIL SEAL WATER PUMP MECHANICAL SEAL REMOVAL (ENGINE DISASSEMBLED)
NOTE: The water pump mechanical seal can be removed without removing the engineRefer to Water Pump Mechanical Seal InstallationReplace the pump shaft seal and water pump mechanical seal whenever the crankcase is disassembled
6Inspect the crankshaft main bearing journals for scoring and abnormal wear
CRANKCASE BEARING INSPECTION