Fuel pump did a fuel "dump"
Thread Starter
Melting Slicks
Joined: Oct 2012
Posts: 2,156
Likes: 273
From: Dunedin NZ.
Fuel pump did a fuel "dump"
Woke up this morning to a strong smell of fuel coming from the garage
, opened the door of the garage to see a big pool of fuel under the vette. A quick investigation revealed that the fuel pump was leaking somehow from its body. I crimped the incoming line to block the flow and sprayed degreaser into the fuel so I could wash it away, whew potential disaster averted! Now to my question, is it common for a fuel pump to leak from its body? It is definitely not the fuel lines, I have never touched the pump on this engine (Gen 1 small block), I understand there is some trick to stopping the the pump rod falling out when you remove the pump?
, opened the door of the garage to see a big pool of fuel under the vette. A quick investigation revealed that the fuel pump was leaking somehow from its body. I crimped the incoming line to block the flow and sprayed degreaser into the fuel so I could wash it away, whew potential disaster averted! Now to my question, is it common for a fuel pump to leak from its body? It is definitely not the fuel lines, I have never touched the pump on this engine (Gen 1 small block), I understand there is some trick to stopping the the pump rod falling out when you remove the pump?
Le Mans Master
Joined: Aug 2006
Posts: 7,427
Likes: 1,560
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Just turn the engine over so the pump rod is on the 'heal' of the cam, you will feel it go up.
To hold it up there apply some heavy grease to the rod.
You might want to replace the rubber hose while you're at it.
You need a 'molded' hose, store bought can link.
https://willcoxcorvette.com/corvette...it-front-70-82
To hold it up there apply some heavy grease to the rod.
You might want to replace the rubber hose while you're at it.
You need a 'molded' hose, store bought can link.
https://willcoxcorvette.com/corvette...it-front-70-82
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
There's also often a bolt hole in the front of the block that will accept a bolt to hold up the pump rod.
Chances are the diaphragm on the inside of the pump is shot. Ordinarily, they are not rebuildable. They're also reasonably cheap. Good idea to replace the molded rubber hoses while you're there, as Peterbuilt says above.
Chances are the diaphragm on the inside of the pump is shot. Ordinarily, they are not rebuildable. They're also reasonably cheap. Good idea to replace the molded rubber hoses while you're there, as Peterbuilt says above.
Instructor
Joined: Apr 2006
Posts: 109
Likes: 23
From: Duvall WA
Don't forget to "CHANGE THE OIL" as there is a good chance gasoline from the leaking fuel pump also made it's way into the crankcase. Diluted oil caused by gasoline in the oil could cause main &/or rod bearing failure ?
