Strange Water pump problem??

[88-378]

Ok, I have a new water pump on the newly rebuilt engine. The last two days it has had a few drops under the balancer on the floor. It is coming from the weep hole.

However, It dies not do it while running and only when I let it sit overnight. Very small amounts.

Another thing that was weird is that when i went to check the coolant level, it still had pressure on it. So, I drained a bit from the radiator, cleaned everything up and ran it until operating temp and so far it has not leaked out of the weep hole.

Should i just go ahead and replace the pump?

 

[88-378]

My wifes stepfather, who races, said it may have been I had overfilled the radiator and the that made excessive pressure and it weeped.

He said if it hasn't done it since i drained some coolant out then i should be ok. He said run it a few more times and keep an eye on it.

 

[88-378]

Still not leaking! Weird...

 

[Repostyle]

Glad we could help! LOL

 

[capri debris]

It's not possible that overfilling causes too much pressure to build, the cap is what regulates pressure in the system.

There isn't much that can go wrong with a water pump, they are very basic designs. A housing, shaft, impeller, bearing and seal. The seal may have needed some time to "seat in"... though I've never heard of the seal needing seat in time... may have just been a fluke. Keep an eye on it and if it leaks again, just replace it.

 

[88-378]

I hear ya. I can't explain the pressure that it still had the next day while totally cool.

No leak this morning either. I am going to give it a flush this weekend. I may have loosened some scale or rust in the radiator. The rad is pretty new, it's just been in storgae while i was restoring. shouldn't be too bad.

I am also wondering if the restrictor i installed for the heater core had something to do with it?

 

[88-378]

It's not possible that overfilling causes too much pressure to build, the cap is what regulates pressure in the system.

There isn't much that can go wrong with a water pump, they are very basic designs. A housing, shaft, impeller, bearing and seal. The seal may have needed some time to "seat in"... though I've never heard of the seal needing seat in time... may have just been a fluke. Keep an eye on it and if it leaks again, just replace it.

Finally! Found it was a bad cap! Still hasn't leaked, replaced the cap and all is fine.

 

[84Ttop]

Dang, too late, as I was reading down I was thinking, bad cap. Glad you got it fixed though