Hi Roland,
the Motor had a broken Rod at right Side, if i purchased it in 2008.
Thats all repaired. New Undersize Rods, Piston Rings, Undersize Crank Bearings, Valve ans Carb Service.
http://www.onlycubcadets.net/forum/showthread.php?t=113
With a broken Rod, the Tractor shakes much much more.