Simple aluminum soldering can be used for many aspects of repair
Photo 1- Take an awl and pierce the bottom of the can.
Photo 3- Take two aluminum cans and solder them together.
Photo 2- "Puddle" a thin layer across the hole.
Photo 4- The side of the gas engine crankcase that had the connecting rod break through it.
Photo 7- The new metal patch is free of porosity, so the propeller can now be balanced and painted.
Photo 5- To repair the boss that had broken out of the Honda valve cover, the parent metal crack should be "vee'd out," by grinding. The parent metal is then heated and the solder melted in the vee groove until it fills the groove. Again, grind the joint down flush and no one will know.
Photo 6- Note that a portion of the manifold has also been soldered back onto the manifold.
The aluminum repair display.
Headlight trim part from antique auto, repaired with aluminum solder.