I wouldn`t worry about those pits but pieces appear to have broken off that transfer edge. I would use a round stone ball in a dremel to put a slight radius on that transfer edge before running it again.
MS461 Scuffing / scoring the bore intake side
- Thread starter NickC
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NickC
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Thanks.
That was the plan, I'd hope the pieces broke loose during honing as it looks a bit ''smeared' in that area.
Being a machinist doesn't help but I'm not impressed with the finish at all, pronounced lips on the in and out ports etc, or are for turbulence....
That was the plan, I'd hope the pieces broke loose during honing as it looks a bit ''smeared' in that area.
Being a machinist doesn't help but I'm not impressed with the finish at all, pronounced lips on the in and out ports etc, or are for turbulence....
I have experience of these pits on the cylinder wall, my stihl 020t had one visible when viewed through the exhaust port. Like you, I was worried in the beginning but I thought what the hell and ran it..... my 020t is still running strong today (I must have spotted the pit eight or nine years ago, maybe longer ! )
