Charlie,
I'm not sure if JB Weld would do it by itself, but if I reinforced it with some baling wire looped over the piston pin then tied around the dipper, then wrapped the rod with some high-temp muffler repair wrap, I could sell it on ePay as "reconditioned." I'd probably have to drill some holes in the piston skirt to keep from throwing off the balance....
Bruce N,
I don't know yet about the block/bore. There are no holes in the block, and I didn't find any chunks of bore-shaped iron in the pan, just rod pieces. All I've done so far is take off the iron oil pan to swap it onto the used replacement engine. The aluminum pan from the engine I'm putting into the 147 had a bolt broken off in the left rear threaded mounting hole, and the left front had the threads stripped out of it. I just took off the iron pan and removed what's in the picture. What I could see of the crank didn't have any ugly marks, but there's still something jamming. I won't look at it until later. I put the aluminum pan on the broken engine to seal it from moisture and keep it from leaking all over the place, and it's sitting on a bench until sometime this summer. I figured I'd finish one project before I started another, kind of a new approach for me. The iron pan got wiped out, degreased, pressure washed, primed, painted, and is drying now before being put onto the replacement engine waiting to go to its new home.