Hey guys; Jim S here. I'm at Don T's working on the 149. It has a knock in the motor, primarily at idle. Hard to pin point even with a stethescope but sounds like either wrist pin or rod bearing?? Motor was supposedly rebuild before Don bought the tractor!! Was wondering if these motors have any habits of this sort. Checked points, set valves, carb etc. Before I tear it down I thought you fellows might offer some input.
Thanks JIM S
Thanks JIM S