Re: Tank petcock
Not true if you do it right. All the old gas tanks from the old briggs engines and others were soldered on. Like i said use a 3/4 or 1" hole saw cut the petcock out and then drill a small hole the size of the petcock hole it will give you double thickness.
Prep yes one has to really clean and use acid,and pretint the parts before swet soldering...........Curt