Gas Cap Gasket, gas cap Options

[Mike1981]

Hello Everyone

I tried to use the search function on this but was unsuccessful...

My gas cap gasket seems to have failed, and leaks when tank is full and I turn hard.

I have a metal cap with a cork gasket.

Does anyone know where I could buy a new one?

Thanks

[914sgofast2]

Try 914Rubber.com or AutoAtlanta.com

[Mike1981]

thanks

[bdstone914]

Hello Everyone

I tried to use the search function on this but was unsuccessful...

My gas cap gasket seems to have failed, and leaks when tank is full and I turn hard.

I have a metal cap with a cork gasket.

Does anyone know where I could buy a new one?

Thanks

Mike

The original gasket was fiber. Check tbe cap to be sure the spring is not briken and the rubber bladder under the inner ring is intact. If so the cap will notmaintain pressure on the gasket.

[76-914]

I bought one from 914rubber since I had just installed a new tank. It was so thin I trashed it and reinstalled the old one which is much thicker and still sealed properly. (IMG:style_emoticons/default/shades.gif)

[Mike1981]

Hello Everyone

I tried to use the search function on this but was unsuccessful...

My gas cap gasket seems to have failed, and leaks when tank is full and I turn hard.

I have a metal cap with a cork gasket.

Does anyone know where I could buy a new one?

Thanks

Mike

The original gasket was fiber. Check tbe cap to be sure the spring is not briken and the rubber bladder under the inner ring is intact. If so the cap will notmaintain pressure on the gasket.

There is no spring in my cap

Do you know where i can buy a new one? Thanks

[bdstone914]

The spring is not visible. Press down on the center of the inside of the cap. It should be under tension.
If it is broken you ned a new cap. Same as a VW Beelte in the 70-74 year range. I dont like the 914 rubber seal either. I make rhem out of a thick fiber material.

The original gasket was fiber. Check tbe cap to be sure the spring is not briken and the rubber bladder under the inner ring is intact. If so the cap will notmaintain pressure on the gasket.
[/quote]

There is no spring in my cap

Do you know where i can buy a new one? Thanks
[/quote]

[bdstone914]

This one had a broken spring. See how far down the inner ring is? It should be all the way up.

[Mike1981]

This one had a broken spring. See how far down the inner ring is? It should be all the way up.

oh ok thanks

[Mike1981]

This one had a broken spring. See how far down the inner ring is? It should be all the way up.

oh ok thanks


Hello Everyone.

I ordered a new gasket, installed it and it did not solve the gas smell problem.

I then noticed the overflow hose is disconnected. I think the gas is being sloshed upwards and drains through this hose onto the car.

Should this be connected to something?

Also there looks to be a breather and this is not capped off either.

[Mike1981]

Hello Everyone.

I purchased a new gasket...no improvement.

I did notice this drain hose which is dumping the sloshed fuel onto my car. should this be connected or capped off?

[Superhawk996]

First - stop overfilling the tank

Second route hoses properly.

Orange is overflow - route out holes below tank to ground

Green is supposed to go to the vapor expansion tank and then to charcoal canister

Looking at your blue tank I can only assume that you no longer have the expansion tank, charcoal canister, and associated plumbing back to the engine.

Route green line same as orange if need be. You will have vapor / smell until you route to a charcoal canister which gets purged at each drive.

Place WTB ad on classified forum - plenty of caps floating around out there.

[Mike1981]

First - stop overfilling the tank

Second route hoses properly.

Orange is overflow - route out holes below tank to ground

Green is supposed to go to the vapor expansion tank and then to charcoal canister

Looking at your blue tank I can only assume that you no longer have the expansion tank, charcoal canister, and associated plumbing back to the engine.

Route green line same as orange if need be. You will have vapor / smell until you route to the charcoal canister.

Thanks Superhawk for the advice.

Yes charcoal canister is long gone. So Tie both together and route down to hole below tank?

[Superhawk996]

I wouldn’t worry about trying to tie together into a common line if that’s what you mean. Just route both under car.

If you park outdoors you’ll be fine.

If you’re parking in a garage you should look into finding the expansion tank and charcoal canister. I had to go this route - like your car, mine came to me “fixed” by DAPO who got rid of the evap system when they installed carbs. (IMG:style_emoticons/default/chair.gif) Full disclosure: I was a DAPO back in the 80s with my first 914 and ditched the evap stuff when I went to carbs . . . And dealt with occasional gas smells.

For what it’s worth, by having tank vented to atmosphere, it’s not great for the environment and over time your most volatile parts of gasoline evaporate off which I’d rather be burning and making power with instead of smelling up the garage.

[fiacra]

Not to speak for other posters, but the gist of what I am reading is strongly suggesting that you fix everything properly. It is hard to argue with that approach. That means sourcing the missing pieces and reassembling everything the way it was designed to be. Fixing other people's shortcuts/mistakes takes time and resources, but it is always on you to do things the right way. If you don't then you will keep having problems. (IMG:style_emoticons/default/beerchug.gif)

[iankarr]

I made one from some cork gasket material. Pretty straightforward and if you mess up, it's only a sheet of cork (IMG:style_emoticons/default/wink.gif)

[Superhawk996]

I made one from some cork gasket material. Pretty straightforward and if you mess up, it's only a sheet of cork (IMG:style_emoticons/default/wink.gif)

(IMG:style_emoticons/default/agree.gif)

But unless I misunderstand the post, I think the spring inside his cap is broken, necessitating a new (used) cap?

[Mike1981]

I made one from some cork gasket material. Pretty straightforward and if you mess up, it's only a sheet of cork (IMG:style_emoticons/default/wink.gif)

(IMG:style_emoticons/default/agree.gif)

But unless I misunderstand the post, I think the spring inside his cap is broken, necessitating a new (used) cap?

Someone did mention this. I could not see a spring in my cap is it under the cork gasket?

[Superhawk996]

Someone did mention this. I could not see a spring in my cap is it under the cork gasket?

Don’t worry about seeing the spring. What important is that the flat area where the gasket sits moves back and forth with spring pressure on it to force the gasket into contact with the filler inlet

[Mike1981]

Someone did mention this. I could not see a spring in my cap is it under the cork gasket?

Don’t worry about seeing the spring. What important is that the flat area where the gasket sits moves back and forth with spring pressure on it to force the gasket into contact with the filler inlet

Mine is exactly like this one.... broken spring.

Can I buy a spring or would it be better to buy a new cap?

Does anyone have one to sell?

Thanks