Fuel line replacement
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Joined: Dec 2005
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Fuel line replacement
So, for some reason, the driver's side fuel line on my "new" 78 bronco is crimped near shut at one point under the driver's door area inside of the frame "C".
I was told that I could replace the section with some sort of tubing because it's not a pressurized line, and my mom said I could get some stuff called "flex line". Are either of those viable options or do I have to go with the replacement metal lines?
I'd like to be able to just use a piece of tubing to save some money, but obviously I want it to work right.
I was told that I could replace the section with some sort of tubing because it's not a pressurized line, and my mom said I could get some stuff called "flex line". Are either of those viable options or do I have to go with the replacement metal lines?
I'd like to be able to just use a piece of tubing to save some money, but obviously I want it to work right.
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
Unless you flare the ends the spliced in rubber line will always be a source of leaks. Having a leaking rubber line right under the cab door where you exit is not a good idea. It is better to remove the whole metal line and put in a new one, it is cheap enough.
You can buy metal fuel line, I use 3/8 brake line in 60-72 inch sections.
The only places I use rubber line is going up from the tank tube to the frame, frame near the steering box to the engine, and the engine to the carb. The line that crosses in front of the engine behind the fan should be all metal.
Each line end that received a hose should be flared and try to keep the rubber 4" or less at each connection. It does not hurt to put the 3/8 fuel line inside a 1/2" heater hose to protect it and prevent it from vibrating and chafing.
You can buy metal fuel line, I use 3/8 brake line in 60-72 inch sections.
The only places I use rubber line is going up from the tank tube to the frame, frame near the steering box to the engine, and the engine to the carb. The line that crosses in front of the engine behind the fan should be all metal.
Each line end that received a hose should be flared and try to keep the rubber 4" or less at each connection. It does not hurt to put the 3/8 fuel line inside a 1/2" heater hose to protect it and prevent it from vibrating and chafing.
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