Ernest Christley wrote:

John Kimmel wrote:
Ernest Christley wrote:

I've decided that I'm going to go ahead and try my hand at gas welding
aluminum. I have the TinMan's video. I have the flux. And I have
lots of experience welding...steel.

The one question I have is cleaning the flux. The video has the
TinMan welding and then cleaning coupons with a damp rag. But how
would you clean the inside of a closed fuel tank?


By not making it a closed fuel tank. Put in an access panel.


That is so obvious, there is no way it could be right. 8*)

The construction method I was considering was to make sides with rounded
edges, so that they cupped in like the bottom of a Coke can. There
would be a convenient flange to weld, but it would leave a sharp crevice
on the inside for flux to hide in. Having never done it, I'm not sure
if I'm being overly concerned about a nit, or if overlooking it would
have catastrophic results.

If you have a pretty fast connection, go download my Texas Parasol CD
from Matronics.

There is a photo section on building the aluminum gas tank in it.
This particular example looks a lot like a Cub tank - 12 gallons.
Formed end plates with aluminum wrapper skin.

I didn't weld it - Sonny did, using electric stick.
I can sorta do ok with a torch now.
Just practice on scrap first...

Plans and CD:

http://www.matronics.com/photoshare/...et.03.04.2006/




Richard