Weld (Solder)Aluminum to Brass:
All State welding catalog. Flux and filler rod. Toxic(?) difficult to figure out how to use works good.
Dont remember name of product but will look in the welding boxes tonight and see.
Used for brass fitting to Aluminum dry sump tanks(why?) by Lola race cars and by me to fix said Lola's
Used for Brass fuel filler cap fitting to Aluminum fuel tank on Aeronca 7 ACs and such...
Idea #2--Go find a restorer at the airport and take pictures of the FW 190 to send me PLEASE!