Last night, we looked at the crank thru the holes in the block. The top end of rod #2 is mashed up but still rotates smooth on the crank. Piston is history as is the cam. Water level is still good. Still no ideas why it decided to break like it did. 

It is a very late serial number 1650 with Oliver diesel engine. 
When we get it apart more, we will be able to tell is we need a complete engine or maybe just a block, 1 rod and a cam. Then we can do a good rebuild on what we have. Or if we can find a good running engine,, we can get this back in the field soon. (After it dries up from the rain we got the last 2 days)

Dennis