Ok, so I have decided I am going to try to rebuild my 85 gs550e's P.D.F module. It the click adjuster that attaches to the bottom of the fork leg. So I pulled it apart and was able to find two seals, a large o-ring and a U-cup seal. From what I can tell, in the industry they call them wiper seals or rod seals. Since this is not something that Suzuki ever listed I am sort of on my own. But for the most part it is a rod seal in the hydraulic sense, being that it seals a rod with internal fluid pressure, and the rod is one that moves across the seal.
So I did some measuring, and the rod is 15.94mm in diameter, and the cavity that holds the seal is 24.2mm in diameter. So here is the question, how do you pick the seal size? Online, I can find some rod seals that are 16x24x3.5, but I can also find 15x24x3.5 and what seems like random variations of the i.d and o.d. Should I be matching the exact dimension of the hard surfaces, going oversized by a certain percentage? The original seal measures 16x24x3.5, but I have no idea if it has swollen with age or shrank.
So I did some measuring, and the rod is 15.94mm in diameter, and the cavity that holds the seal is 24.2mm in diameter. So here is the question, how do you pick the seal size? Online, I can find some rod seals that are 16x24x3.5, but I can also find 15x24x3.5 and what seems like random variations of the i.d and o.d. Should I be matching the exact dimension of the hard surfaces, going oversized by a certain percentage? The original seal measures 16x24x3.5, but I have no idea if it has swollen with age or shrank.
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