Originally Posted by
InspGadgt
So if the damper tube works on the friction (for lack of a better word) of the oil...why would the dampening be different in one direction from the other? Maybe because the air can not evacuate fast enough from the closed end of the tube even with the small air hole?
In one direction, area is increasing so the damping is progressive. In the other direction, area is reducing making the damping regressive.