I was helping a friend work on his Fairbanks Morse recoil for his 580 West Bend. He trashed a spring & needed a new one. I have been buying them when I come across them as there are a lot of styles & adapters to fit on other saws.
Much to our surprise they have 2 width's of springs. The 580 1 pc cast frame recoil has a large dia pully & a spring that is 1/4" wide. I had some Fairbanks Morse even for a 580 that have the smaller inside pully & have bolt on adapters. They use a 5/16" wide spring. Needless to say they are not interchangable. Just another thing to try to remember when working on this 50 year old stuff.
580 Recoil
Moderator: Rob Voska