Another fuel leak - fuel rail

[JoolzB]

It appears that my Griff has developed another leak under the bonnet and just missing the manifolds. The fuel rail (if that's what it's called) attached to the inner off side wing under the bonnet seems to be dripping fuel from one of the 4 copper pipes. Is this likely to be a case or re-tightening the nuts or is it going to require more extensive repairs?

[spend]

Err I think the pipes you are talking about are the brake pipes??? If you are sure it is petrol the leak must be somewhere else. Fuel is carried in the black pipes, to start with I would have a look at them & the unions at the back of the fuel rail where the regulator is situated.

Dave

[JoolzB]

Thanks Dave,
That's ruled them out then :embarrased: as it's defo a stench a petrol and is somehow getting to them and dripping over them, the black pipes seemed dry, hmmmm! I shall take another look.

[IPAddis]

It will be the feed or return to the fuel rail. These are two black hoses that come from behind the engine and join the metal fuel rail next to the stepper motor (near the bonnet catch). When they perish, high pressue fuel will be ejected and the brake pipes which I think you're talking about are in the near vicinity.

Ian A.

[red griff roger]

Probably right. There are two fuel pipes up ther and they bend round quite a bit. They do crack. The one I replaced seemed to disappear under the gearbox bellhousing somewhere. I found it was connected to a copper pipe. which could just be accessed by taking off (or moving to one side) the plenum, and a bit of judicious wiggling revealed the jubilee clip. Easy from there. For another foot of copper pipe, it would have taken two minutes. But then TVR may not have been so profitable?

[JoolzB]

Just rechecked and it is indeed a rubber tube spraying over the copper brake pipes, it's the one nearest the front of the car which looks pretty short but the lower clip looks a right bastid to get to. The other tube got replaced a few years back with good quality unleaded marine pipe, so I'll do the other with what I have left from that.

Thanks all for the replies.

[spend]

I have always been a fan of proper pipe clips rather than Jubilee clips.. Its harder since you need exactly the correct size, but they do seem to tear / stress the hoses less to me.

Dave

[JoolzB]

Any tips on getting to it? Does the pipe it's attached to flex or move? It looks as if it should be simple compared to the other one but the jubilee clip screw is at the wrong angle and wedged up against the engine.

[IPAddis]

spend said:

I have always been a fan of proper pipe clips rather than Jubilee clips.. Its harder since you need exactly the correct size, but they do seem to tear / stress the hoses less to me.

Dave

Mine had perished on the bend due to their proximity to the coolant rails on that side of the engine. When changing it, I added another 3 inches to the length of pipe, moving the curve away from the coolant pipes.

I believe there have been some engine fires (total loss) caused by these pipes perishing!

Ian A.

[steve-V8s]

Try this thread, http://www.pistonheads.com/gassing/topic.asp?h=0&a...