Do you guys know of a sealant, glue, or other such goo that would help with this problem?

I have a fuel injected 65 Elky with a plastic fuel cell. I cut a hole in the side for a filler tube. I custom made a flange that bolts to the side of the tank. It has a steel tube that goes thru it in to the tank. The flange is secured with six bolts. On the inside a large plastic ring that came with the tank acts as a washer for the bolts.

The flange has a thick paper gasket under it on the outside of the tank. The tubing on the flange is a tight but not perfect fit thru the hole in the tank.

Is there a sealant I can use on the tube to stop fuel from leaking passed the gasket and flange?

This is the third configuration I've tried and I can't seem to get it to stop.

I know RTV does not work. That failed miserably. I have used JB metal weld in the tank for other purposes, it seems to hold up well to fuel, but does not stick to the tank material very well. How about Form-a-gasket "1"? Will this melt in fuel?

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Jameel Qazi
#'s 67 SS

[This message has been edited by jaqazi (edited 07-25-2002).]

A few things come to mind. I remember that there used to be ( and probably still is) a fuel resistant grade of RTV; I am not sure who sells it. Also, you might try fuel tank slosh sealer, as that will definitely resist fuel. Another possibility is to get some gasket material, such as nitrile rubber that you can make into a proper gasket. If you can find some closed cell foam, that would be very good.

There is a blue thread sealant sold in a
small can with an applicator brush that does
not dissolve in fuel oil anyway. It may work
with the fuel cell, I have used it to seal
threads on fuel oil tank filler pipes. You
can get it at Home Depot or a similar place,
was called Blue something but cant remember
the name.

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Dave
70 chevelle ss396 conv
66 chevelle ss396 hdp/conv
68/72 chevelles
55/57/61 chevies
TC member #493
Never forget Earnhardt!

How about wax. I think GM uses a wax to seal their tanks on newer cars. I'm not sure what kind though.