Originally Posted by
MechEngr
Notice in that snap ring dimension chart that depth is uniform even though the ring section isn't.
I guess it depends on your point of view. Uniform depth to me is same groove depth across the thickness of the ring, i.e., the ring can be installed to same depth regardless of orientation.
Originally Posted by
EXDAC
The TCM mandatory service bulletin does not require removal of circlips to check face orientation. It only requires a check for seating and angular orientation. They don't seem to think face orientation is important.
Once installed the ring ear gap measurement comes into to play and the face position is moot at that point. The "sharp" face is simply a means to tactilely determine which ring face is which prior to install. My guess is if the ring was not facing the proper way it will fail the gap test which does require removal and replacement of the ring per the SB.