Sealing a leaking tank rivet

[peevee]

In the process of replacing sump drains we cleaned off a lump of what we thought was fuel gunk around one of the rivets that holds the nut plate that holds the sump drain in our monroy tanks.

Turns it it might have been some sort of sealant, the rivet appears to have not been well set and sticks out 1/16" or so.

Now fuel is leaking relatively rapidly around that rivet.

 

Has anyone sealed one of these? Since it's the aux tank it's in sort of a weird spot behind the main tank in a different bay it seems, but it's hard to see.

 

There are tank access panels that could probably be opened but then need to be resealed.

The hole for the drain valve seems to small to apply sealant through.

 

All I have found is an RV builder trick, thin some proseal, apply vacuum to tank, and suck it in around the rivet.

Tried to ask monroy. No reply so maybe others have had a similar experience.

[carusoam]

Send Mr. Monroy a PM.  He is pretty good at helping people out with technical details like that.

Best regards,

-a-

[peevee]

1 hour ago, carusoam said:

Send Mr. Monroy a PM.  He is pretty good at helping people out with technical details like that.

Best regards,

-a-

Did already.

[thinwing]

1 hour ago, peevee said:

Did already.

He is also very good with pilot relief tubes and hf radio

[peevee]

28 minutes ago, thinwing said:

He is also very good with pilot relief tubes and hf radio

Good thing I don't have to pee

No reply.