So, now that the Motor for the Camaro is basically done, i'm thinking about what happened. I know most of you have seen the pics I posted of the broken crank, and i think we all know what happened there. My question is this though. Looking at what was left of the piston rings, I have to wonder what caused it. The rings that were intact didn't have much spring left to them at all.
I think that the motor was probably overheated pretty good once or twice for that kind of damage to be done to the rings. Just a theory, but do you agree? What else could cause that type of damage? From the Dyno sheets, I know that at WOT, the tune looked good A/F wise, but because it was a mail order tune, I'm damn sure that idle , part throttle and tip in were pretty fucked up, as in pig rich. I just want to avoid (as much as possible) any more major failures with the motor. I'm also wondering if tune up parts (plugs, wires, opti) had anything to do with what we saw.
Anyways, just kind of thinking out loud, so if you have any input as to a possible cause for these types of failures, post it up! Also, for some reason, there was a single bent intake valve..... not badly bent, but enough that it leaked a bit. There was no evidence of piston/valve contact, so i'm assuming it was bent when the previous builder put it in the head.