Fuel line replacment

[Mickb248]

Hi all I am changing the fuel lines ( front to rear ) but noticed that the brake pipe's have seen better days. Do I need to drop the rear suspension to do this job ?
Thanks

 

[edh]

I think you can do brake lines without dropping the rear axle - there is a joint where the individual lines go to each caliper. What are you using for fuel lines? If solid lines, then the usual method is to drop the axle although i believe it is possible to get away without.

 

[Mickb248]

Thanks for that info, the fuel pipe kit will be from Porsche Shop. So it looks as though I will have to drop the rear suspension... any links to do this ?? I am able to spin a spanner or 2 or 3, and whilst I am under there get the waxoil out.

 

[Waylander]

you don't need to drop the rear completely, just the offside by about 3 - 4 inches.

I have done a few 968's now and the only real issue you will find is most of the rear beam bushes will be toast and at £800 for 4 its an expensive fix

 

[blade7]

I used some high pressure fuel hose when part of the fuel lines rotted on my V6 Audi 80.

 

[Paul 290T]

Why not use copper brake pipe tubing. This can be bent as required to fit over the axle without removing the axle.

 

[Waylander]

Copper brake pipe is 3/16 internal bore, fuel pipes are 10mm for feed and 8mm return don’t think brake pipe would work that well, make your own brake pipes definitely, As a rear axle set and front to rear is about £600 from Porsche

 

[edh]

If you're using OEM fuel lines then it might be cheaper to buy from Porsche than from a firm who re-sells Porsche parts. My garage fabbed me new fuel lines & re-used the connectors from the old ones.

On mine, the bushes for the torsion tube & the suspension arm were fine, but the ones for the arm that comes off the torsion tube were shot. They are very ££

I replaced mine with solid / semi solid mounts anyway, as it's a track car. I wouldn't do that for a road car though as it increases noise.

 

[vitesse]

Certainly use copper brake pipe-easy to loop over objects- for brake line renewals-trouble is the "double cone " formed ends-see my posts "1976 924".

8 & 10mm copper fuel pipe should be available from commercial brake parts Factors or even Pneumatic/hydraulic Factors.

 

[Waylander]

The double flare is available in the more expensive kits, no worries

but The cost of a large flare kit for single use might negate the cost saving a bit, and the cost of a roll of 10mm and 8mm might put you in the same ball park as genuine lines

and of course an element of skill is required to make them

 

[vitesse]

I was keeping it simple-in my immediate Merseyside area,I know many places where I can buy just the quantity I need & get the flares done plus swaged fittings to rubber hoses,etc.

When I last looked ,the decent double flare toolkits were near £200 & just not viable when I can get 3 brake pipes including flares & all fittings for £18

 

[Mickb248]

Thanks for the advise all, I do have a vice mount brake pipe flaring tool ( somewhere ) and I will look into lowering the O/S suspension to help out.

will let you know how It pans out but first I have to do some DIY stuff in the house ( got to keep the other half happy to earn garage time.... )

 

[Eldavo]

If you look at the Arnnworx website it covers off most of the fuel line end fitting sizes. You then have the option of using braided Teflon hose instead should that be appropriate for your needs.