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Leaking water pump?


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If it is truly coming from that whole ("weep hole") then the internal seal on the waterpump has failed.  I assume that you are using dyed coolant (antifreeze), so can see a dye tail from this hole.

 

If coolant is leaking from the weep hole, there is nothing that can be done other than replacing the pump.

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is it constantly leaking?

 

I have had more than a couple brand new pumps weep a bit soon after install, only to quit leaking when given the chance.

 

I attribute it to debris in the coolant system , stuck between the seal and the shaft within the pump.

 

 

The reman pump on my low mileage high compression ea81 is one such case.  It started weeping 4-500 miles after install.

 

It was weeping enough to dribble down the the oil pan.  It did this for a week or so.  I watched it carefully, then ordered up a brand new pump.   When the new pump came in I pulled it into the shop for replacement, only to find the leak had quit.   So I put the brand new pump on the shelf, and kept driving with the old pump.

 

Hasnt leaked since....  about 3k miles on it now.

Edited by Idasho
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Im not talking about debris that came in the pump.

 

Im talking about debris that is always pumping through the coolant system.

 

Also, the bearings are sealed.  A small weep early in the life of a water pump is not going to harm the bearings.

 

Bearing-Failures.jpg

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On your next one, try squeezing some greese into the top hole, then seal it off with some rubberized gasket maker.  The gasket maker keeps the dirt out of the bearings, and the greese makes the bearings and seals last longer.  You won't catch your dealer doing this though. 

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