iamdawalru5
Member
- Apr 26, 2006
- 82
- 1
76GMC1500 said:Those pictures are much better. The scratches appear a little worse in this series of pictures. The scratches parallel to the travel of the piston wouldn't bother me. The ones perpendicular could cause more trouble. Do they snag a fingernail? I think you'll be ok to run it as is.
What you do need to do is chamfer thoes ports, that may be what caused the scoring in the first place. It appears a piston ring snagged the exhaust port.
The angle on your crosshatch is wrong, too. You need to move the drill up and down more quickly. I can't remember if the crosshach angle is supposed to be 30 degrees or 45 degrees.
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