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EFV-8 Club Forum / General Ford Discussion / Fuel pump to Carb fuel line leak

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Discussion Topic: Fuel pump to Carb fuel line leak -- page: 1 2 3

04-22-2020 @ 4:00 PM

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51 Ford Custom, V8 Flathead. I have a slow leak at the fitting connecting the fuel line to the carburetor. Tried tightening and still leaking. You guys would know for sure, but do not believe this is the original fuel line. What would be your recommendations to fix this? I wasn’t sure if there is a flex line that would work or if I should go with the original replacement?

ken ct.

04-22-2020 @ 4:32 PM

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It looks like the line fitting is bottomed out up against the carb body. File this face down a bit and the line fitting will go into it a hair more. Must end up with a small space between the fitting and carb body. OR try a new line with new fitting. ken ct 1-203-260-9780 if you want more info ?

LarryK

04-23-2020 @ 4:08 AM

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Check to make sure that the ferrule is present on the fuel line. An original or reproduction copper plated steel fuel line would be preferred.

Larry

51woodie

04-23-2020 @ 4:44 AM

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I had the same problem with my ‘46 connection at the carb. You have lots of line to play with, so remove the line, cut the ends of just behind the furels, debur and reinstall with new furels. The furels are available at auto supply or plumbing shops. What happens is the furels get over crimped after several re-uses. That is what worked for me.

37RAGTOPMAN

04-23-2020 @ 4:53 AM

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hi
I would go to a steel line, copper is a NO NO, they crystallize over time and will break, brittle
also check the treads in the carb, this was a big down fall ,in these carbs, they strip out easily,
either make a new line or buy a new one,make sure it is steel.
copper coated is what FORD used,in my 37 so everybody thought they were copper,
and if they had a problem they replaced with line copper,which is a bad idea,
If it ever breaks, you will never forget it,
I do not know of any car or truck manufacturer using copper lines, brakes or fuel lines anywhere
also maybe get a rebuilt carburetor for a spare,
my 2 cents 37Ragtopman I always carry a fire extinguisher

This message was edited by 37RAGTOPMAN on 4-23-20 @ 8:01 AM

ken ct.

04-23-2020 @ 5:17 AM

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Ive had copper lines on my 36 for over 30 yrs never had a crystilized one yet. There is not enough length in available lines to cut off 1 end to install new ferrel and ford nut on your old one. Ive rebuilt 100's of 94's and replaced 100's of copper lines with NO issues. OMO. Do what you must. Cheapest way out of this filing the pump surface (no cost) new cooper line with fittings (approx. $ 5) compared to steel copper plated for $ 25. ken ct

51woodie

04-23-2020 @ 6:33 AM

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I made the suggestion on cutting off the ends, based on the picture that DJ posted. That line was replaced at some point, with a piece that is longer than the original. With some straightening and re-bending, there would be lots of tubing to play with. The cutoff is only about 3/8 to 1/2" per end. From the picture, it looks like the line is almost touching the oil filter. It cost me $1.25 for two ferules when I repaired the leak on my'46. Also, an old time plumber told me what he considered the correct way to make this connection, and that is to put the nut and ferule on the tube, insert the tube into the housing and start the nut. Push the tube in until it bottoms out, back off about 1/16 of an inch, then tighten the nut. He explained, if the nut is tightened with the tube bottomed, the ferule may not crimp tightly on the line. Just some thoughts.
Denis carpenter has two options: $6.00 kit 91A-9369-A or, $30.00 pre-bent kit 8BA9369-A

ken ct.

04-23-2020 @ 8:24 AM

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Your suggestion would work if he has excess tubing there. Wont help if nut is bottomed out against the FP housing before the ferrel is totally crimpted on line and making good thight seal against the bevel in carb. Ive run into this a few times before . ken ct

04-23-2020 @ 5:02 PM

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Thanks for all the input guys. I’ve got the new steel replacement line on order. Hopefully it doesn’t require too much bending to fit. I’ll let you know how it goes.

05-02-2020 @ 1:02 PM

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Got the new steel line on. Was not without some challenges. I had to cut 3/8” off the fuel pump end to get it to line up. This seemed easier to achieve the proper fit and angle than bending the line. I torqued the line attempting to leave the 1/16 gap like 51woodie recommended. I thought it was tight. Started it up and leaked from both ends. I was able to tighten both up. Ran again and was dry. I’ll keep an eye on it.

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