69 BB Fuel Lines
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
I can't offer any advise on your return lines other than I have similar on my SBC and no problem with a locally manufactured return, factory (repro) clips and modern fuel hose. If you have enough length, you might cut the ends off and put a small flare in the ends - like the factory.
For the pressure lines from the pump>filter>carb! I would LUBE the lines and fittings, threads, etc. those flare fittings need to be as tight as you can get them. You can't tighten dry fittings as much as you can lubed fittings.
A light coating of grease on the tube and flare where the nut contacts it, as well on the threads might solve all your leaks. Worth a try
Lars doesn't like Teflon tape, but a small ampunt on the threads seems to work. Just don't overdo it if you use tape.
Pete
For the pressure lines from the pump>filter>carb! I would LUBE the lines and fittings, threads, etc. those flare fittings need to be as tight as you can get them. You can't tighten dry fittings as much as you can lubed fittings.
A light coating of grease on the tube and flare where the nut contacts it, as well on the threads might solve all your leaks. Worth a try
Lars doesn't like Teflon tape, but a small ampunt on the threads seems to work. Just don't overdo it if you use tape.
Pete
People must have a reason for wanting them or they wouldn't make them but it's beyond me. Nothing from the tank to the fuel pump is stainless.
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
I had an email from a forum member with a new (to me) idea and it worked like a charm. He said he has been using it for years on stainless lines.
Use fuel compatible o-rings that fit the outside diameter of the female end.
Think about it...
My C6 Z06 is all o-rings. Injectors, fuel couplings and all with ten times the fuel pressure of an old 427.
The carb fitting on a quadrajet has a seal and that seems to be ok so why not use an o-ring on a stainless end instead of cranking down tripple the recomended torque on a fuel pump or carb fitting?
It flat out works with stainless and thanks Jeff for showing me how to think outside the box again!
Use fuel compatible o-rings that fit the outside diameter of the female end.
Think about it...
My C6 Z06 is all o-rings. Injectors, fuel couplings and all with ten times the fuel pressure of an old 427.
The carb fitting on a quadrajet has a seal and that seems to be ok so why not use an o-ring on a stainless end instead of cranking down tripple the recomended torque on a fuel pump or carb fitting?
It flat out works with stainless and thanks Jeff for showing me how to think outside the box again!
