I had 2 harbor freight unit that worked of of 110v that work good that I used to fix Gates and tractors in the field. To bad I sold them when I got a nice 220v Lincoln for the shop that can do it all. I am still looking for a nice generator with a 50amp breaker that will run it.
I used to get sent out to work in one of our other shops and they had the slickest trailer mounted welder I ever saw. Believe it or not, it was a Ford flathead V8 that powered the big welder and that baby just purred.
Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.