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  #1  
Old 07-22-2000, 10:32 AM
HERBIE
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my water pump on 300e is leaking water from a small orifice in its lower part. whats the function of this orifice. and its suppose to be open without any seal.thanks
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  #2  
Old 07-22-2000, 11:21 AM
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Join Date: Jan 2000
Location: New Bedford, MA USA
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The impeller shaft seal is leaking. The little hole is an escape route for leakage. It's always open, it's a drain..
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  #3  
Old 07-22-2000, 10:54 PM
GaryL
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You found its purpose...to let you know when the water pump is crapping out. Once you see leakage, it's time to replace the pump.
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  #4  
Old 07-23-2000, 10:57 PM
Harvey Sutlive
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Another point on worn out water pumps - it seems like the downhill curve on those things isn't predictable. You can have, say, a small leak, and in a week it's a little worse. You project out and say hey this can wait another weekend. But by that next Thursday it's gushing a radiator full of water every half hour.
Chances are you're better off taking care of the repair sooner rather than later.
Harvey
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