With the engine and subframe on a trolley it was plain to see what had happened. One or both of the two front big end bearings had seized, snapped the con-rod and then proceeded to thrash about inside the block. The result was two very large holes in the crankcase and the sump punctured in a number of places. This however was not the end of the story - being cast aluminium, the damage to the block extended forward in the form of cracks and distortion to damage the timing chain cover. Finally when the sump was drained, a gallon of anti-freeze ran out before the black sticky remains of the oil - so the water galleries have also been damaged.