Chainsaw Repair

I don't know how A2 would have worked because I never finished them .I just figured it was more stable than 4140 and should get hard all my itself kind of like gear steel . It was a pain in the butt to cut without over heating it .Fact I got a few so hard that carbide wouldn't cut them any more . I think I tried to get 6 but only ended up with three good ones .

The reason I used steel instead of cast iron is because the rings are so thin . I figured if I used iron that thin there would be a good chance of breaking them when installing .

On that praticular instance it was a Mac 125 that I resleeved with an iron liner .Grade 50 cast iron I think . Nodular would have been tougher but it doesn't cut like gray iron .

FWIW if you search the net you can find a zillion places that mention several methods of making rings .Interestingly  many are RC sites .Again though reiterating ,I've found more ideas from RC sites than I ever have from chainsaw sites .