Fuel tank venting Options

[FJ1200]

Morning,

I think its finally time to address the fuel smell on my 72. I pulled the tank last night and it looks like the tank was probably replaced at some point as it is near perfect. I ordered new stainless tunnel lines from Chris Foley as well as new hoses and clamps for both ends. My question is venting. There is literally no hoses left in the frunk. It looks like the 3mm lines should all tee together and tie to the charcoal canister. So 2 ports on the expansion tank, 1 port on the filler neck and the then the canister. Is this right? If so then I should need 2 tee's. The overflow hose looks like it is currently NA, 914 rubber is out of stock as are other vendors. Has anyone used 3/4" clear poly tubing in its place? Lastly after I hookup the canister does anyone offer a clean looking solution to tie the suction side into IDF air filters?

Thanks.

[914sgofast2]

Are you sure the gas tank does not have surface rust bubbles on the outside of the gas tank where it rests on the felt cushions the factory put on the body? The felt cushions trap moisture and over time it rusts holes into the gas tank and yo then start to smell gas in the passenger cabin whenever you have a half full or higher tank.

As others have stated, there are two larger hoses of 1/2" diameter than run from opposite ends of the charcoal canister on top of the gas tank back to the engine compartment. One of those hoses connects to a 1/2" outlet on the engine cooling fan housing on the passenger side of the car. The other of those hoses is connected to the 1/2" outlet on the engine's air filter housing.

There are 2 small vacuum hoses at the gas tank. (1) One small vacuum line runs from the vapor holding tank (on top of the gas tank) to the small outlet in the end of the charcoal canister. (2) On the bottom side of that same vapor recovery tank is another small pipe outlet where a small vacuum hose connects to the filler neck assembly which has a small outlet on the back side of the neck.

There is also a 1/2" clear vinyl hose which connects to the square "funnel" piece on top of the gas tank which has the gas cap. That 1/2" diameter outlet's vinyl hose runs down the side of the gas tank to an approximately 3/4"diameter hole in the body under the gas tank to drain any excess gas spilled during refueling onto the ground.