Fuel Lines
Fuel Lines
Author
Discussion

paulathome

Original Poster:

686 posts

247 months

Wednesday 21st January 2015
quotequote all
Morning chaps.
In the middle of a body off rebuild and almost at the point of dropping the body back on after new out riggers
fitted by RT Racing. New shocks, all new suspension parts, ball joints and bushes. (pics to follow)
Even after taking hundreds of pictures during the strip down non show the fuel lines around the filter and pump properly.
Question is what size pipe is used from tank to pump/filter and then what size copper pipe runs down the chassis.
Does the pipe run from tank to filter and then pump, or the otherway round.
Any help greatly appreciated from the PH collective.
Regards,
Paul.

QBee

22,470 posts

173 months

Wednesday 21st January 2015
quotequote all
Per page 97 of the Steve Heath bible, it goes tank to pump, pump to filter. However, he does say it's not unusual to have an additional filter to stop muck getting into the pump. He also says the pipes from tank to pump are made from wider bore petrol-resistant hydraulic hose. The electrical connections on the pump are at the outlet end, by the way.

I cannot see any reference to pipe sizes, sorry.

carsy

3,019 posts

194 months

Wednesday 21st January 2015
quotequote all
Tank to pump 12mm hose.

Pump to filter 8mm hose.

Filter to Copper pipe 8mm hose. Copper pipe being 8mm outer diameter.

Edited by carsy on Wednesday 21st January 08:23

Twistygit

800 posts

182 months

Wednesday 21st January 2015
quotequote all
carsy said:
Tank to pump 12mm hose.

Pump to filter 8mm hose.

Filter to Copper pipe 8mm hose. Copper pipe being 8mm outer diameter.

Edited by carsy on Wednesday 21st January 08:23
Hi, is the pipe not imperial, I seem to remember a previous thread (Chris from durham) and he kept on getting leaks then he found out the fuel rail was 5/16ths

ch427

11,877 posts

262 months

Wednesday 21st January 2015
quotequote all
carsy said:
Tank to pump 12mm hose.

Pump to filter 8mm hose.

Filter to Copper pipe 8mm hose. Copper pipe being 8mm outer diameter.

Edited by carsy on Wednesday 21st January 08:23
This is correct as ive just replaced the copper return line and rubber hoses at the rear of the car.
The 8mm rubber is a good tight fit on the copper but i compressed some olives on just to be safe.

Sardonicus

19,442 posts

250 months

Wednesday 21st January 2015
quotequote all
Use 8mm copper pipe (oil fired boiler pipe) available from your local DIY outlet I would also solder on some olives for the hoses to lip over TVR may not have but I would scratchchin I have done this previously and was happy with the outcome 8mm/7.6mm fuel hose sliding over the olive nice and snug wink imagine this with a mild tin of solder and the fuel hose clip just to the right of that olive

spend

12,581 posts

280 months

Wednesday 21st January 2015
quotequote all
Surely its easier & quicker (as well as less prone to leaks) just to flare the pipe?

Sardonicus

19,442 posts

250 months

Wednesday 21st January 2015
quotequote all
True, but I don't have flaring dies for 8mm pipe & not much use to me with modern vehicles with plastic lines.

OleVix

1,438 posts

177 months

Wednesday 21st January 2015
quotequote all
on my 97 it goes tank - rubber hose - copper pipe with bend - rubber hose - pump - rubber hose - filter rubber hose - copper pipe to front

ch427

11,877 posts

262 months

Wednesday 21st January 2015
quotequote all
Id recommend using these to fix the copper lines to the chassis too instead of the crappy cable ties, makes a much nicer job of it and stops the copper rubbing the paint or powder coat off.

http://www.ebay.co.uk/itm/EPDM-Rubber-Lined-P-Clip...

Alexdaredevils

5,697 posts

208 months

Wednesday 21st January 2015
quotequote all
Ditch the lot and chuck a braided hose down, and use a different route imo

SILICONEKID345HP

14,997 posts

260 months

Wednesday 21st January 2015
quotequote all
Alexdaredevils said:
Ditch the lot and chuck a braided hose down, and use a different route imo
Sounds good to me wink And far less joints .

ch427

11,877 posts

262 months

Thursday 22nd January 2015
quotequote all
Good idea, i personally would not run them anywhere they could not be inspected or replaced fairly easily though.

paulathome

Original Poster:

686 posts

247 months

Thursday 22nd January 2015
quotequote all
Thanks guys,
It seems my guess was right but it does seem odd that the filter comes after the fuel pump.
Copper pipe now bought from my local plumbing merchant together with olives.
Im now at the point where chassis is now on wheeels and ready to drop the engine and box in.
Will take plenty of pictures when the engines in as this will have to be done outside as my single width garage
leaves very little room for swinging the engine crane around.
Thanks again for all your input.
Paul.