Gas Tank Vapor Valve Leak???

[@aamira5651]

Good news is that they are available for around 40 bucks... but a PITA to replace without dropping the tank. Mine was cracked and I noticed it when I was swapping it to the new gas tank. Good luck. BTW, I like your videos. Please keep sharing. 👍

[@thedrivewayC3]

@@aamira5651 That one is new. Installed a little over a year ago. 🤨

[@aamira5651]

@thedrivewayC3 make sure the tank is not over filled. That'll cause a leak too

[@thedrivewayC3]

@ It’s pretty full, but not that full. I could just not fill it past 1/2 way, but that’s kind of lame.

[@Sigforty40]

Definitely looks like the valve. Sometimes they will crack. I had the hose barb come off mine. You will also want to test the replacement to make sure it is good.

[@thedrivewayC3]

@@Sigforty40 So annoying, since this one is a new replacement. I may have damaged it during installation, as I struggled to get it past the frame, due to the mufflers. Any reason not to delete it? It’s a non-smog car so…

[@Sigforty40]

@ if you delete it you will need to change the fill cap to a vented cap. This is where all the tank pressure allows the fuel vapors to go toward the charcoal canister.

[@thedrivewayC3]

@ I think I have a vented cap already.

[@Sigforty40]

@ it should say it on the cap. I think 69 or 70 was when they stopped using the vented caps.

[@steven6170]

If the cap is not vented just drill a small hole underneath cap

[@alhodge4051]

as stated below it can be reached but it is a royal pain in the ass. upper left side, center. I just took a short piece of fuel hose, three inches. and plugged one end with a bolt and hose clamp. then after fighting the old hose off put the short piece on with another hose clamp. maybe pulling the tank is the best way but I could not face that .

[@thedrivewayC3]

@@alhodge4051 I’m not going to pull the tank. It’s too much trouble with the mufflers in the way, and I think I probably damaged the valve installing it because of the tight fit. I think I can pull this one off and then I can decide to either replace or delete.

[@jhuntosgarage]

For me, it's the hardest thing to get to that's always the problem.

[@thedrivewayC3]

@@jhuntosgarage For sure - and it’s easy IF you can get to it. Bad design!

[@jhuntosgarage]

@thedrivewayC3 Agreed. My '81 isn't any easier. Keep us updated. I'm sure I'll be having this problem soon.