well, i finally got around to tearing it down and the verdict is that i had a catastrophic oil pump failure.
tons of play in it and when it did turn it sounded like it was full of gravel. it sticks and has rough spots as you spin the input shaft. there were also several more signs that the oil was not circulating, most obvious was oil that was cooked onto the top of the pump pick-up.
there was a lot of broken stuff too, pics coming soon.
the #1 connecting rod that failed had enough of the crank end removed that i pushed it out of teh cyl by hand after i took teh head off. the piston had hit the head hard enough that the face of teh piston has a very clear impression of the combustion chamber in it.
looks like about 5 valves got hit, the oil pan is toasted(3 or 4 holes and part of the lip ripped off), 2 pistons are sitting crooked in the block, crank is jammed forward so that the front counter weight is touching the block, the #3 piston is sitting 4inches down in the hole(i thought that was an interesting trick with a 3.48" stroke).
basically the bottom end is so jammed in place that it wouldn't turn in either direction when i hit it with a 5lbs mini-sledge.
took out part of the cyl sleeve along with the side of the block. note the huge chunk taken out of the crank. ain't savin that one
dented, holed, and ripped the lip off the oil pan
inside the oil pan i was lucky enough to discover what looks liek fish tank gravel covered in a fine layer of cooked mobil1
ahhh, #1, the home of the disaster. note the impression of teh combustion chamber, including 1 valve in the face of the piston
a better view of the hole with the debris removed. there were 2 pieces of the block still being held on by oil pan bolts. with them off you can see how big the hole really is
later
tim
