Doi I need a return fuel line on my 70 Runner?

elliskev2 · Mar 19, 2016

Hello,
Looking for some information on fuel line routing, with a return line, on my 70 RR. It has been apart for quite a few years. The body shop removed the old ones. I have bought some replacements and would like to run them correctly. I have also noticed some pics only show the supply line, do I need a return? The has the non ECS system.

Thanks in advance.

lewtot184 · Mar 19, 2016

440 and hemi cars came with them; 383 cars didn't.

Sixpactogo · Mar 19, 2016

383 cars had a single 5/16 fuel line. 440 & Hemi cars had a 3/8" line with 1/4" return. The fuel senders were engine specific also with the 440 / Hemi having a 3/8" nipple and 1/4" return nipple built into the sender.

elliskev2 · Mar 19, 2016

Thanks for the info....

SlinktRR · Mar 20, 2016

You dont need to run it. Car will perform fine without.

dolphin · Mar 20, 2016

Hi Bro.I have a 70rr,i ran new lines for my 440-6.Someone told me to run a return line with the 3/8 line,and also to use a vapour canister,so i did.I also vented my gas tank.I think thats the best way to vent.I was told i would suffer from vapour lock with out the canister.My problem was i was losing to much gas pressure to my 6 pack.It was running back thro my return line,so i dont use a return line at all,works like a dream,All the best Mike.

elliskev2 · Mar 27, 2016

Thanks guys...I was noticing a lot of photos without the 2 lines.:icon_cool:

Doi I need a return fuel line on my 70 Runner?

elliskev2

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