Fuel line, need expert opinion

[davebem]

Ive had a leak from a fuel line on a Alfa V6, I accidentally damaged the original line whist doing an engine conversion. The original Alfa line goes from a metal pipe running up the bulkhead, to a flexiable plastic (nylon?) line with a thick rubber protective sleeve to the fuel rail with a Dorman connector on the end.

As a temporary measure (the car needs to go for mot and inspection) Ive fitted some SAE J30 R9 fuel hose in the correct size with the correct mikalor syle clips direct from the metal line to the rail. As the line passes over a hot area of the engine and partly over where heat comes from the rear bank manifold, Im not sure if this would be a permanant solution?. The stats on the net for this type of hose give varying temp ranges, Im not sure how hot the top of the engine bay gets. Will it take the high engine bay temps?

[E-bmw]

I would have thought if you could get some of the concertina style aluminised heat shielding such as is normally seen on some (A/Con usually) hoses in the engine bay to slip over it, that should be fine.

I can't find any but this could be up to the task.

http://www.ebay.co.uk/itm/8mm-50mm-ID-Heat-Fire-Fl...

Edited by E-bmw on Sunday 5th November 15:30

[GreenV8S]

It's nowhere near the exhaust headers so that rules out the most problematic heat sources, and the original hose was clipped to the cover which implies that it isn't getting outrageously hot. Any R9 ought to be good for at least 130C sustained and I don't see any likelihood that you will exceed that. If you do overheat the hose, the most likely damage would be premature aging and cracking at the surface, which you'd be on the lookout for anyway. At least, being in such an obvious location it will be obvious if the pipe is being damaged. I'd be happy with that as a permanent solution.

[paintman]

I use the same spec hose on the injectors & rails on my RRC. Never had an issue with it.

[stevieturbo]

As long as it's rated for the pressurs etc...dont see a problem there.

[davebem]

thanks all, put my mind at ease.

[Krikkit]

That's a nice, neat job though... In fact that whole bay looks minty, more info?