"The buttercup to lowers interface might have worked itself loose to leak the oil in the lowers."
That still has nothing to do with the rebound knob, it's the same as a loose bottom bolt without buttercups (damper shaft to lowers interface). Still a coincidence between the knob loss, the \[bath\] oil loss, and the damping loss.
Makes sense the shaft on the knob is longer: it has to reach through the buttercups. Also makes sense that with the cups it's going to be more likely to lose a knob, because the upper/internal interface of the knob shaft to the adjuster rod is going to be sliding around when the cups move. There are going to be some forces trying to push (and pull) the set screw past the groove, so if the knob's set screw is on the limit of holding on, perhaps bye bye knob.
Feb. 8, 2023, 9:56 a.m. - Justin White
"The buttercup to lowers interface might have worked itself loose to leak the oil in the lowers." That still has nothing to do with the rebound knob, it's the same as a loose bottom bolt without buttercups (damper shaft to lowers interface). Still a coincidence between the knob loss, the \[bath\] oil loss, and the damping loss. Makes sense the shaft on the knob is longer: it has to reach through the buttercups. Also makes sense that with the cups it's going to be more likely to lose a knob, because the upper/internal interface of the knob shaft to the adjuster rod is going to be sliding around when the cups move. There are going to be some forces trying to push (and pull) the set screw past the groove, so if the knob's set screw is on the limit of holding on, perhaps bye bye knob.