mxu 250 300 Workshop-manual : Page 215

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          12. COOLING SYSTEM                                                           MXU 300/250


 WATER PUMP
 MECHANICAL SEAL (WATER SEAL)
 INSPECTION
 Inspect the telltale hole for signs of
 mechanical seal coolant leakage.
 If the mechanical seal is leaking, remove
 the right crankcase cover and replace the
 mechanical seal.




                                             Water Pump             Telltale Hole




                                             Water Pump Cover
 WATER PUMP/IMPELLER
 REMOVAL
 Drain the coolant. (page 12-7)


 Loosen the screw and disconnect the
 coolant inlet hose.
 Remove the four bolts and the water pump
 cover.


                                                           Bolts          Inlet Hose




                                             Water Pump Impeller    Gasket
 Remove the gasket and 2 dowel pins
 Remove the water pump impeller, washer
 and seal washer (porcelain).
 The impeller has left hand threads.




                                                            Dowel Pins



12-9