My friend has a 1965-69 Cockshutt 770D. We are not sure what year it is. I do not have the serial# right off hand.   A few months back I had to replace the injector pump.  I hired a another farmer to put it back in for me.  Well he didn't set the timing on it. Now I cannot get it started.  I had him come back out 2 weeks ago and he could not find the timing marks on the front of the engine.  Do any members here know where I could find the timing mark?