Soooo... having a borescope is a gift and a curse at the same time.
Would this yellowish-greenish area on the valve be sulfur deposits? It shows up on #3 and 4 but not 1 or 2. Also only shows up inside exhaust passage and not on the face of the valve.
Anyone know if this is an issue? I'm guessing not but I don't know what I don't know. Thanks!
Would this yellowish-greenish area on the valve be sulfur deposits? It shows up on #3 and 4 but not 1 or 2. Also only shows up inside exhaust passage and not on the face of the valve.
Anyone know if this is an issue? I'm guessing not but I don't know what I don't know. Thanks!