Hey everyone,

I've got my 87 GX up on the blocks now, and I have noticed I need to change the metal fuel and brake lines that run to the back of the car.

It looks like it should be easy to change the lines, since everything is out in the open, but are there any tricks or things I need to watch for? We have the proper tools to bend the metal lines and attach the fittings for the brake lines.

Has anybody ever run rubber fuel lines front-to-back? Would it be worthwhile, or is it even possible?

Thanks for the help,

Tom

 

Its as easy as it looks.
I ran full stainless steel braided lines from the tank to the front and back. Its pretty easy.
I wouldn't bother with rubber. What's the point?
Sean Cathcart

 

I'm with Sean on this one. I'm going to use -6 steel braided w/ AN fitting going from the tank to the fuel system and all the way back.

 

Overkill is so much better.

10-AN, split into twin 8-AN lines at the anodized fuel rails, double into a regulator, 6-AN return line.

Bling Bling, I can support more than 1200 hp!

 

My 87 n/a has the fuel lines replaced with rubber - reason was lack of time to wait for steel lines to come in as fuel was pouring out of the bad line and also the almost guarantee that when you start screwing with 15 year old steel lines that you are going to lose all of them! brakes and all - this then leads to all those 15 year old brake unions where the lines split and etc. I decided, therefore to leave everything alone and replace both fuel lines with hp rubber - this works great but is not cheap - be warned that the correct rubber hose costs C$5-6 per foot, and approx 20' is needed.
Ian

 

Thanks for the advice guys!

I decided to just keep it simple and replace the lines with regular steel lines and then just undercoat them well once I am finished working on the bottom of the car.

I bought -5 (5/16" dia.) line because that is what size appeared to be on the car. Should I return this and get bigger? Like -6?

My other question, what do I do with that check and cut valve at the front of the tank? Do I run all new lines for that too, or can I just remove that stuff and just run the fuel lines? I'm not sure what it does, so that is why I am asking!

Thanks again,

Tom

 

It sends the gas vapours to the charcoal canister at the front of the car to be used by the engine. You need it. I have a somewhat custom tank, and I had to do something special.