I have been using B Weld. Drain fuel below the leaking rivet, clean
the rivet and surrounding area. Then a small dab of JB Weld.
Overnight cure and no leak. I have done this to three rivets so far.
I sand the JB Weld to a low profile and dabb white paint to hide the
fix. 2000 hours on airframe now since 2009. Really happy with this
airplane.
Jim C
On Mon, Sep 8, 2025 at 2:50PM Doc <docclv@windstream.net> wrote:
>
>
> Guys:
> I had a Leaking Fuel Tank Rivet about 10 years ago. With the fuel
> level below the leak, I put a drop of Super Glue Liquid over the rivet.
> No more leaking and I sort of forgot about since.
> My other tank developed two leaking rivets recently. Discussions
> on the Forum recommended Loctite 290. With the discussion on the Forum,
> I thought Loctite might be better. I tried the Loctite and even forced
> a little of it around the rivet by putting a little air pressure over
> the rivet with a syringe as discussed. I let the Loctite cure for 48
> hours plus. Added some gas and lowered the opposite wing to submerge
> the rivets. The rivets still leaked and there was no Loctite
> discoloration about the rivets.
> I then lowered the fuel level again and cleaned the rivets with a
> quick short spray of Carburetor Cleaner, wipe with a paper towel and a
> blow dry with compressed air. I put a drop of Duro Super Glue
> (ethyl2-cyanocrylate) over the head of the rivets and let it cure for 48
> + hours. I submerged the rivets again with gas. No more leaks and the
> Super Glue is visible over the head of each rivet.
> My conclusion is that Super Glue will seal rivet leaks on the gas
> tank. Super Glue is not degraded or dissolved by gasoline (check the
> internet). Has any one had good luck with any other simple sealant like
> epoxy, J B Weld, silicone etc. Doc N123CV # 41087 and N784DC # 41862
>
>
