1970 and Charcoal Canister

[martymart]

I have read multiple posts regarding routing a charcoal canister and cannot find what I am looking for. I have a 1970 FJ40 and installing a fully desmogged 1981 2F. It appears that I should install a charcoal canister to eliminate any gas smell. Since my 1970 tank does not include a vent for a fuel separator where would I hook up the charcoal canister line? The only outlet on the tank is on the neck. Is that where I should connect the canister?

 

[charliemeyer007]

Where would you hook it up on the 81? Adding a port to the top of a tank isn't all that hard.

 

[martymart]

I believe to the air filter

 

[martymart]

Is there a write up anywhere on installing the charcoal canister on an 1981 2F with an early gas tank? I have searched with no luck.

 

[Living in the Past]

Changing to a seal system with fumes going to a charcoal canister probably want a non vented gas cap and seal the hole in fuel fill neck.

 

[Living in the Past]

Should add you want to install a vent with a check valve to keep the early tank without a return so it doesn't go into a vacuum.

 

[Mark Jennings]

I don’t think the 70 has a vented cap. The tank vent on the early rigs is a pin hole on the filler neck under the cap. You could block that and put a ‘Tee’ in the filler neck vent hose and run to the charcoal canister.

 

[martymart]

Mark I’ll try that

 

[Mark Jennings]

Mark I’ll try that

So when you ‘Fill-R-Up’ just make sure no gas is in the neck. And on hot days, kinda’ under fill so the gas doesn’t expand into th filler neck. In fact your ‘Tee’ should be biased up, closer to the gas cap.