I have two different Fox 40s that have two separate dampener issues that I am trying to figure out how to fix. I have experience replacing blown dampener bladders, but I have never had a dampener apart at the seal head, (or the middle of the shaft).
Failure 1: 2009 40 RC2
Replaced a blown bladder and after replacing the bladder, the rebound then worked properly, but we noticed there was NO compression dampening when the dampener was compressed regardless of hi or low speed compression settings. I never had the seal head apart or to my knowledge messed with anything in the compression part of the dampener. (I am under the impression that the bladder part only is for rebound dampening).
Failure 2: 2006 Fox 40R
Rebound dampening stopped working completely regardless of rebound setting. After replacing two blown bladders recently, I assumed that this was the problem. When I took the lowers off I was surprised to see the that the bladder was not poking out past the cap. I went ahead and removed the bladder and It appeared to be in perfect condition. I went ahead and replaced the oil under the bladder, bled it out, and installed a new bladder and cap hoping this might fix it. Rebound dampening worked slightly when the adjustment was turned all the way in, but after several minutes of riding the rebound dampening stopped functioning completely.
I have been reading Fox's dampener service instructions on their web site but I am still a little confused about what could be causing each problem. Could the rebound dampening failure on the 2006 40R could be caused by a worn Rebound Glide Ring as shown in this picture:
It does not say what that blue o-ring on the tip is but I was thinking maybe that is for the compression dampening? Thanks for any Help!
One More Question: I just replaced the bladders in each of these forks. Will I be able to leave the bladder and cap in place and just take apart the dampeners at the seal head to perform the needed repairs there?
Failure 1: 2009 40 RC2
Replaced a blown bladder and after replacing the bladder, the rebound then worked properly, but we noticed there was NO compression dampening when the dampener was compressed regardless of hi or low speed compression settings. I never had the seal head apart or to my knowledge messed with anything in the compression part of the dampener. (I am under the impression that the bladder part only is for rebound dampening).
Failure 2: 2006 Fox 40R
Rebound dampening stopped working completely regardless of rebound setting. After replacing two blown bladders recently, I assumed that this was the problem. When I took the lowers off I was surprised to see the that the bladder was not poking out past the cap. I went ahead and removed the bladder and It appeared to be in perfect condition. I went ahead and replaced the oil under the bladder, bled it out, and installed a new bladder and cap hoping this might fix it. Rebound dampening worked slightly when the adjustment was turned all the way in, but after several minutes of riding the rebound dampening stopped functioning completely.
I have been reading Fox's dampener service instructions on their web site but I am still a little confused about what could be causing each problem. Could the rebound dampening failure on the 2006 40R could be caused by a worn Rebound Glide Ring as shown in this picture:
It does not say what that blue o-ring on the tip is but I was thinking maybe that is for the compression dampening? Thanks for any Help!
One More Question: I just replaced the bladders in each of these forks. Will I be able to leave the bladder and cap in place and just take apart the dampeners at the seal head to perform the needed repairs there?
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