well, i got to run the motor again today with the black light dye in it, for a couple of pulls so we could see exactly where the oil is coming from.
a good thorough cleaning behind the engine/around the main took place, put the dye in, and warmed her up. so just for fun, i bumped it up to 6% over, and lowered the peak rpms to 5800. this is on 92 octane, that's why i lowered the peak shut off. it made 653 hp at 5800, 670 lbs/ft of torque at 4500, but it started the pinging/spike/drops at 5600, with 10lbs boost. man, it's too easy to just keep adding teeth and getting more power...........of course until something goes boom.
well, i now know the engines limits on 111 octane, and 92, so that's cool. seems to be about 10lbs on their gauge. (oh, side note, we had a mechanical gauge inline as well, and that one consistently showed about 1 and 3/4 lbs more than the dyno's, he had his mechanical gauge checked today, and it is spot on, so my boost numbers may be reading lower than they actually are, so these 10lb. runs might be higher than that...) the next run was just to 5000rpm, and that was enough to get a drip drip drip.
off she came from the dyno, still in the stand, and off comes the flywheel. lights out, black light on, and guess what.
it ain't the pan. you could clearly see a mist around the arc of the block, with mist and puddling around the lower arc/cap, and moisture on the crank.
i don't get it. this is a different block and rear cap. the crank has been checked. i'm not callin' anyone out until i know for sure, but the bop seal is the only common denominator. i know some people love them, and some people hate them. i think it's safe to say which side i am leaning on at this point.
if i could spell out in very large letters every expletive known to man, i would, but i won't. i will leave it at this,
i am really god damn sick and tired of this freakin' rear main leak!!!!
mkay, much better. so, back to matters at hand, i'm done bitchin' until i find out more. the engine is staying there, they are a very trusted machine shop that's been around for years. no, pontiacs are not their specialty, but they are very well trained in alot of trouble shooting areas. they are going to pull the pan, check that main, and see how that bop seal is fitting in there. they are also going to pull all the caps. there was some serious copper flakes in the filter, more than i or they wanted to see,( don't even f'ing ask me about THAT little concern...). i am not going to go over this with my engine builder until i get a second opinion on the scenario.
so, as it stands, i got a great running engine, tuned up good, learned a ton more of info. it's going to be several days at least before they can squeeze me in to work on it and give me some information, and i hate hate hate my luck with the pontiac rear main..............
davey
ps, where's that rope seal thread..........