Join Date: Jun 2013
Location: Mobile, AL, USA
Re: Steering damper and fork brace ball joint/bearing
I have the steering damper apart and will replace the seals. Most of the seals I've found in the correct 10x20x7 size for the steering damper are the typical seal used in a rotating environment, like a gearbox seal. Are these type seals adequate for the steering damper, or should a hydraulic seal be used? Hydraulic seals seem to cost more and I don't want to pay more if a hydraulic seal is overkill.
The original problem I had with the front end of the damper flopping from side to side seems to have been caused by a missing "cushioning" ring, like the two at the rear end of the damper. And, when I removed the damper from the bike, those two rings broke into several pieces. So, need to replace those three rings, too.
I've read that about 20cc of 5W fork oil is the correct volume and weight of oil to use. I think the thought is that some air needs to be left in the damper to provide a cushion to prevent a hydraulic shock effect in the event of rapid handlebar movement. Comments?
One last question. Is there any need to remove the screw at the front end of the damper rod? Mine is "frozen" and I'm afraid to put too much vise pressure on the rod at the risk of collapsing it.