Creeping bottom cowling hinge pins
On my newly completed RV-12iS with a Rotax 912iS engine, the bottom cowling hinge pins (the lower, longer ones) creep up out of their hinges after several hours of operation. I've tried cleaning off the lube on the pins twice, bending the pins, straightening the pins, tucking the top of the pin under the shop head of the rivet just aft of the hinge, but after a couple hours of fight, the pins will be 2 to 5 inches up out of their hinges.
A friend suggested safety wiring the pins through the cowling wall but I'd prefer not to do anything that can be seen from the outside.
Is anyone else having this problem and how have you dealt with it?
RV-12iS complete and flying