I'm in the middle of tearing down my 996 engine, to have the rotating assembly balanced to get rid of a very annoying vibration.
When taking off the heads and the jugs I noticed the following on the cylinder walls:
I don't like the look of it (especially cylinder 1), but I'm not an expert on this matter. How problematic is this? Can I run it like this, does it need a light hone or does it require a complete replating of the bores?
I would really appreciate an expert opinion on this 🙏