- Oct 29, 2007
- Reaction score
- In an apartment, MN
The copper material in the bearings is on the bottom. It would have had to wear through two or three layers of metal to get to the copper. There'd be a lot of metal. There's not. It could be anything. Every single engine has minute amounts of metal in the oil. Normal.Nah, Brother, No Way on that!!!!!!! Now about the Lil bits O' Copper? Ain't that inner bearing material? Or am I still wacked? I don't think that's related, but I'm a lifetime Carpenter, not a Lifetime Pro Mechanic
Well, My hearing is terrible, I admit. But what "I'M" hearing sounds like piston slap. That's the problem with being online. You just never can be 100% sure.First thing I thought. My dad has a GTX with a 440 in it. The motor was built years ago, I'm assuming with TRWs in it. Sounds exactly like his video.
A drag racing Mopar mechanic that was an aviation mechanic for Army sold me the short block assembled. He had 5 or more 340s. They were floating pins.. and the way you put that now makes total senseUse the process of elimination. If it has a diesel kinda sound, then that means whatever it is, all eight pretty much have to be involved. Right? Does it sound like ALL EIGHT of something? If it does, stop and think about it. What are the chances of all eight rod bearings knocking? The same amount? A rod knock is "about" the only other thing......with the exception of maybe wristpins that can produce that sound. Full floating wristpins is another thing that can do it. Do you remember if they are pressed or floating pins? With floating pins, you can get some noise from BOTH the pins AND the piston slap. It's like I said early on in this thread. A real HP engine with loose tolerances and floating pins is GONNA make some noise. Even pressed pin engines will make noise with real HP old school clearances.
I've ran her several times hard, since I've noticed it...always figured it was rockers rubbing. And they are! Lol when you give her throttle, it don't seem to get noticeably louder or worse.Maybe we'll never know
See if it goes away with some more throttle.
I'd like to know myself...