Pressurised fuel take?

[dtour]

Well i have been putting up with this for a while, but basically my fuel tank is being pressurised.

So when opening the filler cap there is a massive rush of fumes/air and one time i opened it i had fuel pour out of the tank.

My current setup is:

stock adm tank
carter lift pump
shakotan garage surge tank
040 bosch pump
going to a stock 20v

I have the charcoal canister hooked up to the breather line on the tank, and the output of the charcoal canister is hooked up to one of the vacume lines.

I dont know what the go is, i did change the fuel cap changed for a bit then started to pressurise again.
Any ideas?

[Sam-Q]

try taking the line off the charcoal canister for a short test and see if it still does it, the line from the tank to it that is.

[focus_7]

So this is a bad thing? My stock 86 does this everyweek when I go in for a week for a fill up, bit to the extent of fuel pouring out though.

[Nikkojoe]

Seems to be a toyota thing. All my 86's did it, my IS200 does it and my sister's 2010 corolla does it.

All other cars seem to vent it out better....

[slide86]

my jzx100 never does it.......mind you for the last 3 months it hasnt been hot enough where i am to really create a problem

[dtour]

Car is going through the motions of a respray at the moment so i will try that as soon as its back on the road
i am a little worried about petrol fumes in the engine bay tho :|

[blair]

Yer mine does it every time.

Not to the point of pushing fuel out or anything though? How much fuel was in the tank at the time?

[timbo]

i have had this happen to me twice where fuel has come out of the tank. i have run compressed air through the lines to make sure they were clean and it didn't happen for quite some time but eventually did... i haven't really fixed the problem but i'v stopped it by only filling the car up 3/4.

[dtour]

the car was almost full, was going to siphon fuel out for the pocket bike.

[dtour]

are you running the 4ac stock tank and using the breather as the return?