This is my first post here but I have been a looker for a while. I have a Bolens 1053 with a Wisconsin TRa-10d that several years ago the camshaft busted on it and after discovering that I put it in storage. I got inspired this last fall and winter to put it back in service by rebuilding the TRA-10d and also went through cleaning everything up and painting the tractor. I do not know what the history of the tractor was before I owned it but everything was running fine on it for about a year after I got it and then the camshaft busted. Trust me that it was taken care of and had oil when this happened. I have rebuilt lots of small motors in my time and went through the TRA-10d and made sure everything was according to the manual after the rebuild with a camshaft from a parts engine off Ebay. I finally got everything back to together this last week and started testing. The little tractor was running well but I did notice oil in the air cleaner from the crankcase breather as well as more than I would like carbon on the new spark plug. I was about to pull it back in and recheck the valve clearance on it when all hell broke loose ...a big clang and the motor stopped. I have pulled the motor and opened it up and it is the biggest mess I have ever found in a motor. The camshaft is busted again, the rod is shattered and the tappets are in pieces. So after investing a lot of time in this little tractor I am now at an inflection point about what to do. I am not feeling good about rebuilding this TRA-10d again by any means. It does not like me. I do have a TR-10D that I could rebuild but I do not want to have another bad experience and have another total waste of time and effort. I have studied the repower idea with the Predator motors but sure wish I could have an original cast iron motor intended for this vintage tractor.
So my question is ...can anyone give insight into why I have had two camshafts bust ...and then what about a repower with the TR-10D? Will it be enough power for this tractor? The primary purpose is mowing grass. I did notice the TRA-10D bogging down some when I was testing and mowing the grass with it. But of course it obviously had a problem waiting to happen.
Thank you for any insight and help. Richard