TeddyG
Hero member
- Location
- Portland Oregon
Thank you once again,
That boroscope doesn't give crystal clear images so it's difficult to tell how deep those marks are, but a few scratches look pretty deep. So I won't know until I remove the head and cylinder. Wolfgang highly recommended the Ross pistons and he said the older Ossa or Mondial can have problems. I also learned that a compression tester attachment should have the same length as the plugs, and my old tester is only @ 1/4" long, which may explain the 125/150 readings. I'll keep you posted, thanks!
That boroscope doesn't give crystal clear images so it's difficult to tell how deep those marks are, but a few scratches look pretty deep. So I won't know until I remove the head and cylinder. Wolfgang highly recommended the Ross pistons and he said the older Ossa or Mondial can have problems. I also learned that a compression tester attachment should have the same length as the plugs, and my old tester is only @ 1/4" long, which may explain the 125/150 readings. I'll keep you posted, thanks!