latest is that I'm on the last operation with the timing cover castings- machining the oil pump bores, drilling and reaming that really deep long hole for the spindle. Brrrr. Still causes nail biting. Long deep holes tend to wander off location by a few thou. The spindle has to mesh correctly with the oil pump worm gear, located *half-way* into the hole, hence the sweat. Ah well. It is the way it is.