Fuel Line Run

[GV]

Can anyone tell me which route the fuel line is taken from the tank to the engine bay. I've also had a fuel line split near the bulk head and would like to replace the whole line before MOT in a couple of weeks....

[pk500]

GV said:

Can anyone tell me which route the fuel line is taken from the tank to the engine bay. I've also had a fuel line split near the bulk head and would like to replace the whole line before MOT in a couple of weeks....

They run along top of chassis with hundreds of cable ties holding them on

[Wedg1e]

Depends on model, year etc. A lot of them run along the offside sill rail - an 8mm copper line for the high-pressure feed from pump to fuel rail and a rubber low-pressure return.
I think the idea was to keep the lines away from the heat of the exhaust which would warm-up the fuel.

[GV]

Wedg1e said:

Depends on model, year etc. A lot of them run along the offside sill rail - an 8mm copper line for the high-pressure feed from pump to fuel rail and a rubber low-pressure return.
I think the idea was to keep the lines away from the heat of the exhaust which would warm-up the fuel.

My existing pipe appears to be rubber from the centre of the car. The line that split was an extension bought off the flea. Will take a look at the weekend.

[Englishman]

The early Tasmin's had both the fuel and return lines along the centre of car. Once really hot e.g. a motorway run, there were vapourisation issues in the return line resulting in rough running and stalling. They were subsequently re-routed to the sill. How do I know? I was one of the customers that had the problem!

[SEvans]

Would agree with rerouting them from the center of the car to the sill. Vaporisation in the fuel lines wasn't something I was prepared to risk, especially as the transmission tunnel was coated in heat reflective material that would have made the situation even worse.

This is what I did with mine. Hope it helps.





Cheers Steve

[adam quantrill]

Isn't that on the "wrong" side? ;^) Apart from that, seems a good idea.

I'm not sure why vapourisation in the return would be a problem, though. It used to be a pain in my Rover P6 but that was in the feed.

[Englishman]

adam quantrill said:

Isn't that on the "wrong" side? ;^) Apart from that, seems a good idea.

I'm not sure why vapourisation in the return would be a problem, though. It used to be a pain in my Rover P6 but that was in the feed.

Many years ago now, but first they (HHC) moved the feed to the O/S sill and returned the car to me, but the problem persisted. They then moved the return as well on the advice of the factory and the problem was fixed.

[440Interceptor]

adam quantrill said:

Isn't that on the "wrong" side? ;^) Apart from that, seems a good idea.

I'm not sure why vapourisation in the return would be a problem, though. It used to be a pain in my Rover P6 but that was in the feed.

Same side as mine, nearside on a RHD car. same as the wedge bible photos too.(p116)

[Campbell]

I did the fuel lines on the SEAC a few years ago and ran it in 8mm feed and return on the top of the off side sill tube.
On my SEAC boady the sill is permanent and the tube is up inside so well out od of the way.
I like the idea of having it up at the top of the trans tunnel but heat soak may be a problem.
I would also look at the rubber parts and make sure they can handle ethanol so they dont rot inside.

[GV]

Campbell said:

I did the fuel lines on the SEAC a few years ago and ran it in 8mm feed and return on the top of the off side sill tube.
On my SEAC boady the sill is permanent and the tube is up inside so well out od of the way.
I like the idea of having it up at the top of the trans tunnel but heat soak may be a problem.
I would also look at the rubber parts and make sure they can handle ethanol so they dont rot inside.

I'm running carbs on mine so there is no need for a return but taking the line up the side with an ethanol proof pipe will make me happier and give me peace of mind.