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Discussion Starter · #1 ·
I recently replaced the fuel tank sending unit in my 69 Malibu w 350. It has no smog equipment and I believe it has a Non-vented tank (I'm not sure though). The last two times I drove it I noticed a strong fuel odor. I checked it out and found that fuel was coming from the rubber tubes mounted to what appeared to be a plastic filter mounted to the body, above the tank (not the fuel feed line or the tank itself). When I opened the cap I could hear pressure being released.

The leak is not large but the fuel is spraying on the tail pipe. I don't think this is a good situation.

I believe it has the original cap and it says "Non Vented".

(1) Is this supposed to be a pressurized tank.

(2) Any suggestions on solving this, New cap, replace the filter like device?

I've gotta get this ready for CB 2001

Thanks

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Bob

My Humble 69 Malibu

[This message has been edited by BobFmTyler (edited 05-24-2001).]
 

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Bob - you've got a potential dangerous situation there pal.

If it's like mine the cap should be "non vented" which you have. There should be two hoses coming from the front corner of the tank to that "plastic" item you mentioned which is stuffed up by the frame somewhere. This is obviously some type of venting device.

Definitely get it looked at and fixed Bob, especially if gas is leaking on the exhaust.

I really can't advise you how to fix it but hopefully somebody can jump in here to help.

Good luck pal.



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ACES #4241, TC #947
69 SS Sedan
 

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Discussion Starter · #3 ·
Don:

Fuel was coming from one of the fuel lines going into the filter/vent device. I pulled it off and tried to blow through it without success. I took it down to the local O'Reilly's and they had never seen anything like it. Then I came home and checked all my catalogs (YO, Ausley's, & SW Classic) and could not find any mention of one. Looks like I can't find a replacement. I took a pair of hemostats and pulled the filter material (foam rubber) out of it and cleaned it as best I could. Tomorrow after it dries, I'll put the material back in and try it.

I say all this because your 69 probably has the same vent device on it. On the right, in front the tank mounted to the body with an inlet and tank return line with a vent on the top. If it plugs up I think the return gets blocked and the tank pressure forces a leak at the line.

Thanks

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Bob

My Humble 69 Malibu

[This message has been edited by BobFmTyler (edited 05-24-2001).]
 
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