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Author Topic: Water pump need help please  (Read 434 times)

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Water pump need help please
« on: September 05, 2013, 04:48:10 pm »
Ok so here is the deal  rebuilt this hole pos quad ground up issues
After issues so i put brand new water pump in oil seal water pump seal everthing put this fnnnn thing back in this **** weeps and dont stop so i take it apart by all new seals again and this thing still weeps what am I missing   (pg)

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Re: Water pump need help please
« Reply #1 on: September 05, 2013, 07:26:26 pm »
The end of the water pump shaft is probably protruding up above the impeller surface.  A few thou. protrusion keeps the rubber faced sealing washer from sealing up against the face of the aluminum impeller.  If the shaft is protruding the impeller needs replaced or you can grind the end of the water pump shaft so that it is even or a few thou. below the impeller surface. 

The problem described above is responsible for about 95 % of the LTs leaking coolant out of the weep hole on the bottom of the water pump.  The ceramic faced water pump seal seldom fails.

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Re: Water pump need help please
« Reply #2 on: September 05, 2013, 07:58:43 pm »
Does the lt250 have left hand threads for the impeller bolt like the 500? And left hand threads means the lefty tighty righty loosey which would be opposite of normal right hand threads, correct?

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Re: Water pump need help please
« Reply #3 on: September 05, 2013, 08:00:20 pm »
Yup and yup.

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Re: Water pump need help please
« Reply #4 on: September 17, 2013, 12:41:48 pm »
new impeller and no leaks thank u

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Re: Water pump need help please
« Reply #5 on: September 17, 2013, 04:01:32 pm »
In the future check the 2 washer and see if they have rubber on them. I had alot of problems with mine  ut it was those washers causing all my problems.
91 Lt250r Bartlett port and head mod v force 2 Hinson Clutch Basket Cool Head Scp Pipe and silencer ,KN air filter ,EBC clutch, Ohlins  Triple rate Shocks Redone by PEP Shocks,Stock Rear Shock Redone By Pep Shock,  DG nerf Bars , Lonestar axle 2+2,Lonestar Swingarm ,Douglas Red Label rims.

 

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