Outer Limits 4x4 Board

In the process of a 1.6efi swap and i'm planning on putting a surge tank in the rear drivers side near fuel filler. I was wondering whether the fuel tank breather shown in the picture is needed as i was thinking about using it as a return line from the surge tank back to the fuel tank.

I have a breathable fuel cap so am i right in thinking the tank can still breath through the fuel filler pipe?

That hose is to stop splashback when filling the tank.It lets air escape from the tank as fuel is going in.
If you use it for a return you will have to fill the tank very slowly.

X2.

Steve.

Ah that makes sense, didn't think of that.

Just thinking out loud... could zooker use a T piece so it still worked as a filling breather but also work as a return?

can't see why not.

i guess i should know this but i dont and sorry for the kijack,

but whats the little white bottle do??

Jaffa wrote:Just thinking out loud... could zooker use a T piece so it still worked as a filling breather but also work as a return?

That would work, because there wouldnt be any fuel flowing down the return when cars off and stationary i.e. when filling up. Thanks Jaffa, you just solved my fuel issue

Pyrotech wrote:i guess i should know this but i dont and sorry for the kijack,

but whats the little white bottle do??

Thats an expansion chamber. So if you fill up in the morning when its cool, your fuel isn't soverflowing at lunchtime when it warms and expands.

I need one of those expansion chambers lol, I don't know how many times my fuel has been wasted lol.