New water pump wobbles?!?!
Thread Starter
Melting Slicks
Joined: Nov 2001
Posts: 2,659
Likes: 7
From: Katy (Houston) TX
CI 7-8 Veteran
New water pump wobbles?!?!
While trying to find every little possible thing to do to get ready for the engine install when it arrives I noticed a possible problem with my water pump. It's an aluminum Edelbrock pump that I bought unused off of eBay. Anywho, I bolted up the pulley to the pump and spun it. I noticed that if you look at it from the side (looking into the belt grooves) you can see it wobble a little. From the naked eye it seems like a lot of wobble but I just measured it and it's just less than 1/16 of an inch. Is that an acceptable amount of wobble or does it need to be perfectly true?
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Re: New water pump wobbles?!?! (tshort)
It might last forever, or it might fail at any time. With the engine out, why take a chance with a relative inexpensive component. Any wobble would indicate a bearing, shaft or pulley fault.
Just imagine how disappointed (or worse) you would be after all the effort involved with an engine install, and then have the water pump fail.
The pump can easily be rebuilt. Don't take a chance.
Just imagine how disappointed (or worse) you would be after all the effort involved with an engine install, and then have the water pump fail.
The pump can easily be rebuilt. Don't take a chance.
Le Mans Master
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
Re: New water pump wobbles?!?! (Oldman)
That is a lot of run out. Replace it with a NEW one. Over the counter rebuilds are junk. You are lucky if the last a year. It's the grease that make the difference. There was a thread on NCRS about that. Krytox grease or William Nye cost big buck.. rebuilders won't use it. Only the cheapest will do. Not for me....
Racer
Joined: Oct 2001
Posts: 274
Likes: 2
From: Pampa Tx
Re: New water pump wobbles?!?! (bluevetteman)
Make sure it is the pump and not the pulley. Someone may have tightened the pulley on one side instead of evenly and warped it .
Phlash 72 BB Roadster :seeya
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