It was my own fault the Engine had got stuck.

I had pulled the Head Bolts, in preperation of removing the Head, got inturrupted, and then it sat for three years, and of course some of the Water of the Cooling System leaked into the Cylinders.

I had drained the Cooling System, but, there was still enough Water in the Head or where-ever, to go seeping in to the Cylinder Bores, once the Head Bolts were out...and it was ugly alright!! Eeeeeesh...