Hi,

I am sorry your having so many problems.  Are you using a drill to start your engine or a starter wand.  If your using a drill and its flooded (hydrolocked) most likely it has cracked from the torque of the drill on the backplate.   I was able to get your old engine to start up with a new glow plug and some tuning so i think your having tuning issues.  The biggest part of this hobby is tweaking and always fooling with them.  What issues are you having besides the engine problems?

Eddie<br type="_moz"/>