Fuel lines

[BHardy]

It's MOT time again!

Things to do are:
- repair exhaust leak
- rearwheel bearing
- replace headlight (has a big crack)
- and.....replace fuel lines

So... does anyone know the inner diameter of the lines/hoses between the tanks and the swirlpot , between the swirlpot and fuelpump and between the pump and the engine?

Thanks!

[gun metal]

Kijk maar in je broek dan heb je de maat.

[GV]

BHardy said:

It's MOT time again!

Things to do are:
- repair exhaust leak
- rearwheel bearing
- replace headlight (has a big crack)
- and.....replace fuel lines

So... does anyone know the inner diameter of the lines/hoses between the tanks and the swirlpot , between the swirlpot and fuelpump and between the pump and the engine?

Thanks!

I think the inner diameter of the fuel line is either 8 or 10mm. The key thing however is to ensureyou get the higher pressure type suitable for fuel injection. If you don't your pipe will rupture and spray fuel everywhere. I would source your pipe throught a Rover V8 specialist specifying the need for a fuel pipe suitable for EFi

[rev-erend]

Sure - tank to swirl pot and swirl pop to pump is 12mm.

High pressure pump to filter and then on to copper pipe in 8mm.

[ed_crouch]

Gates high pressure multifuel hose - says 1MPa on the side, which is its working pressure limit. 1MPascal is 10bar, 148PSI.

Mines been running this type of hose for over a year, no problems.

its about 3 - 4 quid a metre from your friendly motor factors.

Gates are american, and make all sorts of things like timing belts for Porsches, BMWs etc. Defo a trusted brand.

Agree with above re the size. Soem of the tank intercoonect hoses are a bit of a nightmare though. Best to remove the old ones (having drained the tank!!), measure the stubs, and then talk to TVRcarparts. Neil sorted me out with all the right hose, but not all tanks are the same, so you cant assume that what my car has is defacto!

Ed.

[mikeb]

I put on some braided race stuff with the proper ends on the 450 when my old hoses totally disintergrated.

The old hoses were covered with some braid but with max power alloy clips on the ends. The braid hid the fact that the hose itself was fkered good and proper and was pissing fuel everyplace.

MikeyB

[djc1001]

Two types of swirl pot - tank to swirl 12mm or (as mine) 25mm
Swirl to pump 12mm (I think on both swirl types)

David

[GreenV8S]

Braided hoses are great to protect your hoses from mechanical damage but terrible for almost everything else. Stick to ordinary hoses unless you have a reason to expect mechanical damage - and that should never apply to a road car.

[ed_crouch]

Agree. Problem with braided hoses is you cant see when theyre cracked... Not good when carrying pressurised fuel.

Plus theyre fecking expensive compared to non braided.

Ed.

[350zwelgje]

Fuel tank connecting hoses I got from a place supplying hydraulic materials for shovels and stuff like that. As standard automotive places are limited in diameters and/or not ok for petrol. Take the old hose(s) and they will match them for you. Was walking out with one metre of the maximum diameter (like 70-80mm, and different to what Corno was implying!) that looked like an elephants tooth in black....

Getting the old hoses off is not an issue as you can cut them up, but installing the new ones in one piece is something else. Probably need to undo at least one of the tanks for this. And while at it you can rust protect the tanks as well.

Rob

[carob]

8mm flow and return, "five eighth" around pump and swirl pot just had mine all renewed.

Rob

[adam quantrill]

I used cunifer pipe (lorry brake pipe) no problems, with some short rubber hose at each end to join it in. It's cheaper thaan rubber and will last forever.