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Have you ever dinted a return fuel line.

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Have you ever dinted a return fuel line.

Post by nellyb1 »

have you ever dinted a return fuel line, or had something blocking it off.

What happened?

Did the car run like crap, backfiring, flooding?

I cant see any blockages or dints in the lines.

If i do replace them, do i need to use the metal fuel line, or can i use the rubber line. It would be about 2 meters long.

Thanks in adavnce
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Post by chimpboy »

I would prefer to use a metal line.

But a dint in the return line would have to be massive to cause overpressure.

I would suspect a blockage if you can't feel any dints. They can happen.
This is not legal advice.
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Post by matto »

can you get to where the return line enters the tank if so disconnect it and see if its flowing
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Post by chimpboy »

chimpboy wrote:I would suspect a blockage if you can't feel any dints. They can happen.
Or, I meant to say, a completely different problem altogether causing your symptoms.
This is not legal advice.
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Post by nellyb1 »

well thats the thing.
the car is runing rich, I've played with the carby, even put a rebuild kit thru it. The timing is running crazy adanvced, but thats the only way to get it running.

I thought it may have been the fuel lines, so i swapped them over and when i undid one, there was alot of pressure in there. Now keep in mind that i've got a gq 42 with a carby. so i wasnt xpecting for there to a heap of pressure in the return line, when the engine wasnt running.

After i did this, it ran great for about a day. now tis back to being a so and so again.

So i was just wondering, if anybody else had dinted one, or had a blocked one, to see if what the issue is with mine is the same sort of thing.

I think i' know what i'll be doing tomosa night. I'll pull the drawers out, and get to the fuel tank, start there with a peice of fuel line, and see if it make a difference. If it does, Booyah, i'll buy some fuel line and make it up to fit as it does now. if not, i havent wasted too much time and money. Well money so far.
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Post by bludnut »

might be a silly question, but have you checked the fuel filter???
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Post by RAY185 »

Disconnect the return line from the carby end and the fuel tank end. Have someone monitor the fuel tank end of the hose with a clean rag held loosely over the end of it while you blow compressed air into the hose at the carby end with an air blower. See if a: it blows air freely through the hose and b: if there is some restriction, are you getting anything in the rag.
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Post by brad-chevlux »

put a fuel pressure gauge on it. any more then 3psi is to much.
http://www.mothfukle-engineering.com/
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