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Discussion Starter #1
Not sure where to put this thread, but I need a venting gas cap to fit on a tank designed for a non-venting cap. I've got the wrong fuel tank and I need to vent it. I'm open to taking the tank out if needed, but if a venting cap could be found, it would be easiest. I've already tried a standard GM non-venting cap and it doesn't work.
 

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Discussion Starter #4
what does the venting cap look like? Is it the 1 thats stock on my car?
your 73 should have a non-venting gas cap.

Drilling a small hole might work. I would have to drill through the rubber seal too.
 

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Curious what set up you are using. Sounds like maybe you have the EEC style tank and plan to eliminate all the extra lines and eec box and just get a vented cap...? I also have a 71 but bought the 70 tank and still need to get a vented cap. The 70 tank has only one or two fittings for lines, not the 4 or 5 from my old 71 tank. As far as your original question, my local NAPA has a slew of caps. I am sure one of them might do the job.
 

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Discussion Starter #6
I originally had the tank with all the vent tubes and bought the correct pickup tube for that tank. I purchased the 71 tank without the tubes. I should have bought the vented pickup tube. That may still be my best option. I
 

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I just went thru this, I pulled my tank and capped off all the EEC tubes and added a vented cap, they are available at most parts places.
 

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Discussion Starter #10
Which cap did you get? The vent cap I bought wouldn't fit.
 

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A lil off topic but I have a fiat spider that I removed all the vapor recovery stuff from, not smart, I should have kept it, it also vented the tank. So I needed to vent the tank. It has a locking gas cap that is sealed pretty well. I took the lock apart and found enough metal on the back part of the lock to drill a 1/16" hole through. Doesn't compromise the lock at all. Put it all back together and now it vents through the lock keyhole. And you really dont need much venting, a small 1/16" hole will keep the pump from sucking the tank in. And you cant even see any holes. JR
 

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Which cap did you get? The vent cap I bought wouldn't fit.
Never mind, I thought it was vented, guess not! I went to get gas and removed it, only to hear the deaded, Hhhhiiisss. Its now got a nice hole in the center of the cap:devil:
 
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