For the RV-7's third annual inspection, I figured it would be a good time to see how the inside of the engine is holding up after almost 500 hrs. The differential pressure check passed with flying colors, and a friend had a good borescope he was willing to bring by the hangar. So we took some pictures and sent them off Bart at AeroSPort Power and Allen and BPA, who both said everything looks fine. I'm glad, because I have no clue what to look for other than obvious defects.
Anyway, the pictures were interesting and thought others might want to see. To me, they looked very different than what you might expect just seeing a piston or valve out in the open. The pictures below are from different cylinders.
Anyway, the pictures were interesting and thought others might want to see. To me, they looked very different than what you might expect just seeing a piston or valve out in the open. The pictures below are from different cylinders.
