altatim
ArboristSite Operative
Mark, thanks for the info, seems like Mcculloch made a lot of variations lol. I think that mine has the thick rings on it, and I was going to pull it apart to check all the bearings and replace crank seals and piston rings. I will make note of the porting and compare it to the D45 I also have that has the same (I think) cylinder casting that I will also be ripping in to sooner than later I hope.