well, i really hurt my thumb on an extension ladder so i have some time to clean up and do some work on my saws. i was working on a low hour 038 av super and it had the same problem as this 038 avs farmsaw. when i took the inside cover off to check things out the oil pump plug rolled out. thats 2 plugs rolling out in a week. i'm thinking this comes off from excessive vibrations or a blast of air in the oiler hole maybe. ( sitting on cement probably). this must be preety common and will be the first thing i look for if and when i get another stihl. i bought this as a spare parts saw, but i keep getting the urge to get parts to get it running.i 've got a good piston, do you think i could get a good used cylinder and some new rings and make this work?