Chainsaw Repair

 I use a drill chuck in my 4 jaw.

An  amusing thing about chainsaws might be the irregular shapes and peoples ingenious methods of machining them .Some times it takes longer to make the holding fixtures than it does to machine the part.

I've seen pictures of really ingenious methods of mounting cylinders,bore side out to cut the chambers down and some crude as a fence post that seemed to work .I myself have never delved into it but I have a theory yet to be proven .By using a grooved face plate with a center and using studs .It would still take month of Sundays to dial in the part so it turns true .Probably two hours to tram it in and 15 minutes to make the cut .

I can't say aye or nay on cutting down the chamber .I'm not fully convinced it's the way to go .However should I ever try it I believe I could do it better with a milling machine than a lathe .

Again though you have to problem of how to mount the work piece .Not impossible of course just takes some time to think it through .

Im abit slow ok but this is what I did , I turned down a piece of alum. in a 3 jaw chuck , spun alum down so the its tight to bore size of jug, , with jug mounted on alum using the bore to be centered I then drilled the 4 holes that once threaded will hold the cylinder to the alum. so if you want to cut the squish band you can, its not perfect but it has you very close to center to start with