I am having problems with my Holley red fuel pump jumping from 6.5 psi all the way up to over 10psi after it has ben on for a few seconds. Anyone have advice on how to fix this without putting a pressure regulator on it.

Thank you all for the help on this thread. Got he boat out and running great this summer


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So I'm looking at replacing his water line. Does anyone know the size of the line going into the pump? Mine is frozen solid and I can't seem to get the valve part off. Also where do you find replacement parts?


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This was caused by a thrust bearing failure.  Bowl pressure pushes forward on the impeller and shaft.  When the bearing failed, the impeller ate into the suction housing.

So do you think I can still use this housing or should I start looking for a new one?


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How does this type of damage to the impeller happen. I was always told that it doesn't actually touch the wear ring.


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I'm pretty sure it got something stuck inside and that's what caused the damage. After so many years who knows. The crazy part is the boat still ran over 60 mph like this I don't know how but it did.


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So I have now gotten everything apart and found a mess. This was my dads boat he bought new in '75. First time the pump has been touched in 40 years. I have taken on this family gem and trying to get it back to its glory days. My impeller is in pieces and my bearings are shredded. Here are some pictures. My number one question is did the impeller do to much damage to keep using the housing? Any info anyone has about any part of this is appreciated.


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I am in the process of rebuilding my pump and had a question. What do I use to take this bolt or screw off?


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