well, after the dyno session, we looked at the filter, ALOT of copper flakes. poop.
sooooo, long story short, the pan came off, the thrust bearing has taken a beating, mostly front side.
there is some slight scoring of rod journals, i'm assuming from stuff running through them, one main has a slight score where a piece of crud went through it, along with the crank.
the seal journal was ground down last time,(really rough serations,) and welded back up to spec. it seems that the weld didn't take well, it is all crazed, leaving cracks you can feel with your nail. i think that might have been the sealing problem with the rear main, there was moisture back there. we put dye in it, and blacklighted it, it was defintely slinging it out the rear main. (AGAIN, i just can't win can i ??????). we had great oil pressure the whole time, unlike the last motor. sure did sound awesome................while tearing itself up.
i have to laugh at this point, otherwise someone or something might get hurt.
soooo, the engine builder is coming by as well, to take a look, and we will go from there. enclosed now are a bunch of pics, for you all to look at, and surmise the damage.
one point of interest is the fourth main. the wear on the thrust surface is odd, like it was leaning forward a bit. there was a ton of wear at the lower most portion on the thrust side, the bottom of the shell, but where it met the block, it was un touched. the block half was pretty beat, uniformly. the back side, showed little wear at all on the block portion of the bearing, but the cap was only touched at the thrust edges where it meets the block. could the cap be off in machining? maybe leaning forward a bit? i don't know.
the thrust surface on the crank surprised me, i know i told my man to check it, but man, it looks rough as hell to me, cross hatch type marks, you could even see where it looks like the copper is smeared into the roughness of it, if you look close at it. endplay was at .012 when it came apart. don't know what it was before all this. there was at least a thou and a half missing from the thrrust bearing, as measured from the part that wasn't worn, versus the most worn part.
rod sideplay was wide i thought, you can see them on the drain plug pics, average at about .030. as high as .034. the old eagle crank isn't really hittin' any home runs here, in my book, but really, it's a combination of things that aren't right.
the drain plug is interesting, a piece of wire wheel is on magnet there,
doesn't look like it went through anything though. some slight marking in the cylinders, like skirt scuffing, very mild though.
my guy is cool about it all, we will all work it out, one way or another. it looks like it is going to come all the way down, everything will get checked out, block and heads cleaned etc, and try this all one more time. lots of work on that crank me thinks.
well, that's all i got for now, you can all 'bench race' these pics, and give your opinions. and please, have a beer, a smoke, a walk with the dog, whatever it is that you do to take the edge off of life, have one for me.
this thing is killing me.
davey