Autopsy part 1.., Nasty bits Options

[Porschef]

So I had a chance to drain the oil yesterday and it looked good till I got to the bottom of the drain pan where I found a couple of small shards of non metallic material that looks suspiciously like bearing bits. Not a lot, but enough to use as evidence. The engine really did not run very long after hearing that sweet banging noise. I did start it for a very brief time twice after that, (no more , Andy) and it would fire right up.

So my question is, what might be the results of a spun bearing? If the bearing is toast, what would create that sound?

Is head damage a possibility or likely?

I can't get to removing the engine for a while, just hoping to know what to expect, maybe.

Thanks,

Joe

[VaccaRabite]

If you spun the bearing you will need to tear down the engine.

Crank will need to be inspected and probably polished. Case will need to be inspected and maybe line bored.

But, bearings are metal...

What do you mean when you say that the stuff you found in the oil was non-metallic? Plastic? Or just not steel? There is not much in an engine that is not metal.