Hello! This is Peter, B RON CO's son, or B RON CO Jr. I guess you could call me. I read the forum from time to time, (mainly to check that my old man is staying out of trouble ), but maybe I'll make an account one of these days!
Anyhow, when I tore off the old exhaust manifold, I found this sort of swelled up/cracked section, and I was kind of curious if anyone else has seen this, as we were quite surprised. It must get pretty hot in there (especially where it swelled since this area flows both the #3 & 4 exhaust ports) so I am certain it is due to some sort of heat/swirl/air flow phenomenon.
I'm a mechanical engineering student at RIT and I probably should have paid more attention in my heat transfer class ... but I'm still good friends with the professor (who also happens to play with I6's, but more of the Bavarian kind), so I'll probably ask him too and see what he thinks.
Cheers!
-Pete, aka B RON CO Jr.
Anyhow, when I tore off the old exhaust manifold, I found this sort of swelled up/cracked section, and I was kind of curious if anyone else has seen this, as we were quite surprised. It must get pretty hot in there (especially where it swelled since this area flows both the #3 & 4 exhaust ports) so I am certain it is due to some sort of heat/swirl/air flow phenomenon.
I'm a mechanical engineering student at RIT and I probably should have paid more attention in my heat transfer class ... but I'm still good friends with the professor (who also happens to play with I6's, but more of the Bavarian kind), so I'll probably ask him too and see what he thinks.
Cheers!
-Pete, aka B RON CO Jr.