2000 Arctic Cat ATV Factory Service Manual, Page 208Get this manual
1Drain the coolant2Remove the three cap screws securing the water pump caseNote the position of the long cap screw and account for the O-ring3Remove the impeller cap screw, washer, and gasket4Remove the mechanical seal using this procedureATap the tip of small sheet metal screw into the inner-metal edge of the sealBGrip the screw with pair of vise-grip pliers and pull the seal outAccount for the pump drive sealAF640D
CLEANING AND INSPECTING NOTE: Whenever part is worn excessively, cracked, or damaged in any way, replacement is necessary
3Place the fan blade with shaft pin onto the motor and secure with the left-hand-threaded nut (threads coated with blue Loctite #242) and washerTighten to 0.3 kg-m (2 ft-lb)Fig4-92
1Clean all pump components in solvent2Inspect the mechanical seal and pump drive seal for damageNOTE: If the mechanical seal andor pump drive seal are damaged, they must be replaced as set
3Inspect the impeller for corrosion or damageASSEMBLINGINSTALLING WATER PUMP NOTE: Treat seals and O-rings with clean antifreeze for initial lubricationAF642D