2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 151Get this manual
ENGINE Crankcase Assembly
123456Prepare upper and lower crankcase and install all components as described on page 5.51 through page 5.57Inspect crankshaft seals to be sure they are aligned flush with ends of crankcaseBe sure balance shaft end plugs are installed with retaining flange fitted in the grooves of crankcaseBe sure oil passage tube is installed with new O-rings (page 5.53)Clean crankcase mating surfaces to remove all oil and greaseApply thin, continuous film of crankcase sealant PN 2871557 to upper and lower crankcase mating surfaces as shown on page 5.58Do not allow sealant to dry before assemblyApply engine oil to crankshaft main bearings in the lower crankcase halfCarefully place lower crankcase on upper case, making sure the oil supply tube and oil pump drive gear are alignedTap with rubber hammer to seat cases together
WATER PUMP
Water Pump Impeller Removal
IMPORTANT: Water pump impeller removal is not required to remove the stator coverIf engine service does not include water pump repair, leave the water pump cover assembled to the stator cover and remove as an assemblyNOTE: The water pump impeller can be removed without removing the engineSee Chapter "Cooling System" for procedure