Can the O-540 series Lycomings get a colonoscopy examination of one or two cam lobes through the oil filler tube location on top of the crankcase?
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ