Fuel pump problem with my 77 Corvette. Help please?

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Mar 21, 2010 | 06:41 PM

Zero5360

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Fuel pump problem with my 77 Corvette. Help please?

So a few days ago my brother in law was driving my Corvette and it just stalled in the middle of the road. We thought that the alternator may have died, so we took it and the battery in. They both failed so I replaced both. The problem persisted, so I figured it might be the fuel filter. It wasn't clogged. I then decided the fuel pump was probably bad and replaced it. That did not fix the problem, so I manually tried to suck the fuel straight up and fuel wasn't coming. I then noticed a red canister in the middle of the fuel line going into the carburetor. There was another fuel filter located inside and it was clogged. I replaced it and can now manually pull fuel through the hose. However, when I start the car, fuel is not being pumped to the carburetor. Could the brand new pump I just installed be bad? Or could it be something else?

Mar 21, 2010 | 07:25 PM

Ganey

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From: CORVETTE 77 385 C.I. TEXAS

Did you prime the carb- fill the carb w/ gas through the vent tube.

There is an ig. module inside the dist. that can cut out/quit. If you don't know how old it is, replace ig. module & you can keep the old one as a spare.

Mar 21, 2010 | 08:45 PM

Zero5360

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Quote:

Originally Posted by Ganey

I primed the carb and filled the tube with gas. I didn't check the ig module though. Didn't even think about it. I'll try that. Thanks!

Mar 21, 2010 | 09:34 PM

Faster Rat

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2024 C3 of the Year Finalist - Unmodified

Rubber fuel hose on top of the engine is not a good idea. Should be a metal fuel line. These plastic cars melt real quick when they get hot.

Mar 21, 2010 | 11:37 PM

myoriginal77

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From: Panama City Beach, Florida

Quote:

Originally Posted by Faster Rat

Rubber fuel hose on top of the engine is not a good idea. Should be a metal fuel line. These plastic cars melt real quick when they get hot.

Also, try and keep any line away from any heat source,

Did you get it running yet ?

Frank

Mar 22, 2010 | 08:43 AM

jdp6000

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From: Aurora Ontario

This may be a dumb question. But did you make sure the piston in the block that hits the lever on the pump is in tacked? How did you get it to stay up during your install?

I had a 77. I recall the first pump I bought was the wrong one. The piston did not make contact with the pump. I then bought the right pump and installed it but used the screw at the front of the block to hold the piston up and for got to loosen it once I had the pump in.

Jim

Mar 22, 2010 | 01:37 PM

Zero5360

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Quote:

Originally Posted by jdp6000

Yeah, the piston seems to be in god condition. I had to remove the plate the the pump is installed over and push the rod up and hold it there while I positioned the pump. If anything, I think that the rod may not be positioned correctly. I'll probably end up removing the pump and checking the rod's position again.

Quote:

Originally Posted by myoriginal77

Also, try and keep any line away from any heat source,

Did you get it running yet ?

Frank

Thanks for the advice. Haven't gotten it running yet. Will work on it a little later and update.

Mar 25, 2010 | 11:52 AM

Zero5360

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Thanks everyone for your input. I realigned the fuel pump and it works fine now. I think the problem was originally the filter and I just didn't install the pump right when I put it in. Thanks again.