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MG MGB Technical - Fuel Line Upgrade

I was given a small supply of Aeroquip AQP racing hose by a hot rodder friend. This is the stainless steel braided stuff. Typically it's used with AN connectors. I was hoping to replace my rubber fuel lines in the engine bay with this hose. I was wondering if anyone in MG-land has done this? I would like to use clamps on the pipe ends rather than convert everything to AN fiitings. Not sure if that is a good idea. Any input would be welcomed.

Thanks,
Tony
Tony

Should work fine. Not sure there's any benefit, except as far as appearance. That does not mean you don't have the constitutional right to do whatever floats your boat. 6-AN hose will fit right onto the 5/16" fuel pipes.
Ted

Actually, some MGBs were equipped from the factory with braided steel fuel lines...at least my '71
MGB/GT was so equipped.

The ends of the hoses were covered with a rubber sleeve to cover the cut braided steel (those things
are sharp!) and were clamped with hose clamps - not AN fittings.
Daniel Wong

Thanks for the input.

In theory, according to muscle car types, the stainless steel outer stainless layer should help keep the fuel cool. No a big issue in the B, but my '77 midget had fuel evaporation issues because of engine bay heat.


"Not sure there's any benefit, except as far as appearance."
Tony

Tony you have several ways to do this, you could convert to all flared fittings (they make AN to pipe thread adapters), the only benefits are appearance, the better sealing (from the flares), and strength/protection of the braid. You could cut the ends off and use a hose clamp, but you need to put some liquid rubber on the ends, that will help to keep the braid from spreading for a while. They will be more likely to leak this way though. Using clamps I mean.
The one major drawback with braided hose is, that you cannot tell the condition of the rubber hose until it mostly shot. By then you will have already probably had a leak. Also the aluminum fittings will corrode unless you keep them clean.
But like you, I think they sure make a engine bay look good.

Philip
P.A. Smith

I was thinking that some heat shrink type material might do the trick to stop the braid from fraying.

"You could cut the ends off and use a hose clamp, but you need to put some liquid rubber on the ends, that will help to keep the braid from spreading for a while"
Tony

Tony,
you can use heat shrink tubing for just this purpose and it will work fine.

However, a suggestion is to use the type for outdoor/inground use which has a sealant on the inside. You won't be sealing anything, but the sealant will act like a glue and hold the tubing to the braid/hose and keep the braid from fraying.

One other suggestion, leave just a little of the tubing (1/16" to 1/8") extending beyond the end of the rubber hose. As this shrinks, it will give a nice rounded end to the hose/braid assembly and look a bit more like the OEM braided lines that Daniel has mentioned above.
Bob Muenchausen

This thread was discussed between 30/12/2002 and 31/12/2002

MG MGB Technical index

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