water pump pressure on Merc motor

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  #1  
Old 05-10-02, 07:36 PM
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water pump pressure on Merc motor

I put a new impeller in my 40 hp Merc water pump being sure to bend the fingers in the right direction.

Now though when I rev the motor the telltale stream of water turns to a dribble but at idle it's strong.

Anyone have any ideas?
 
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Old 05-21-02, 06:15 AM
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When you are doing this test is it in the water or on a
garden hose?
It could be you didnt seal the pump housing properly
and are sucking exhaust gasses.
Scott
 
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