Originally Posted by Flat6 Innovations

Bore scoring...

Not saying that it’s for sure the issue, but when a noise like this pops up in these engines this is the very first thing that needs to be ruled out. Typically people start with valvetrain issues as a probable culprit, and they often misdiagnose the issue. They can even mistreat the issue by following this wrong path at the onset.

Once the bore scoring is ruled out, you can then move on to simpler possibilities with certainty that you won’t waste time and money.

Originally Posted by sandwedge

Understood. Thanks for your opinion. Always appreciated.