Which way do i go? I want to retard it 4 degrees.

All I see on the gear is the 0 mark which is probably straight up and the triangle mark, I don’t see a third symbol and am wondering how you know if it is advanced or retarded it 4? Ie: is the triangle retarded or advanced? If you finitely knew which one the triangle is you can use the process of elimination to determine which is advanced or retarded…