There is no star washer in the damper assembly. (There was on the girder fork models though!) Make sure you have it correctly assembled with all the parts, it's easy to miss something out. It's not very adjustable, I find it rather ON/OFF even with all new parts so I usually ignore it.
REgards, Mark
56 & 57 Trailblazer, 59 Chief, 59 350 Westerner