Metallic chewing gum fixing.

Mmmmmm metallic epoxy putty. Fixes anything worth more than 100 dollars to replace..

This engine case used to have a huge hole in it, but after creating a mold using strips of plastic to create the correct geometry I was able to reform the case to suit.

I coated the inside with a hard setting fuel/oil resistant gasket compound. Seems to have worked a treat. The best fixes are the cheap fixes.