That's good to know. I'll keep on this track then. I did hear from another
lister that surface welds the bungs over slightly undersized holes with good
success. That will be my backup plan but for now I am to far into solving
the swedge problem to drop it at this point. Plus I'd like to know it
works.

Eb



"Rich S." wrote in message
...
"Ebby" wrote in message
...
The EAA states that building your own airplane is educational. Well I'll
say!! I spent the day down in my shop working on the swedging problem.
I am pretty sure I have the answer to what needs to be done. As the
alloy is 5052 and .090" in thickness, it seems to hve good workability.

Ebby ..............

One of the Emeraude builders of my acquaintance faced a similar problem.
He needed to construct a "pass-through" in the center of his tank to allow
the carburetor cables to penetrate the aluminum. In his case, he swaged
matching holes in the front and back of the tank and then welded a piece
of tubing through and through. He built a swage similar to a chassis punch
and it worked rather well.

Regards,
Rich S.