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  1. #1
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    66 rc3 problem with seals

    I've replaced the left side oil seal cause it's blown on me twice now. Last time I replaced it, it lasted for about 3 months of riding, got stored for a month or two, then had a catastrophic failure. Now, I replaced it, everything felt like it went in well, and the fork seemed to be leaking oil on the first ride. The next day I pulled it out, dried off the fork more and went to take it for another ride to see if it was just oozing a bit or whatever, but I noticed what appeared to be oil bubbling out from the dust seals. What could I have done wrong?

    The oil seals were placed text side up, put in place with a socket and then lightly tapped the socket with a mallet until I got rebound. I put the retainer spring in, went in easily, and then the foam seal and dust seal. I put 335 mL of 7.5 wt oil in (which is a bugger to find, seems like everyone has 7 and 10 instead). I just don't get what could have gone wrong for it to be bubbling oil out like that after 1 ride (and there was a decent amount of oil on the stanchions after that ride).

    On a different note, does anyone know where I can get a replacement detent ball and spring for the spring side, I lost mine sometime ago.

    FWIW, model year 2011. 66 rc3 evo ti

    **taken from my post in the suspension forum, but thought that I might get a better response here**
    Just another redneck with a bike

  2. #2
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    Sorry, I don't have a solution but my 55 rc3 is doing the same thing. First I replaced the originals with Marz seals, then I replaced those with enduro seals. Those didn't last much longer though. I love this fork other than that so I would really like a solution too.

  3. #3
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    Reputation: ifouiripilay's Avatar
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    I haven't had this problem on my 55 or 66 both 2010 rc3 Ti. There's a 3yr warrenty if you're the original owner.
    Any bushing slop?
    Are you using cartridge fork oil?

  4. #4
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    Hey Schlock, everything sounds good that you described. Maybe you just folder the seal over when you inserted the stanchions. I just rebuilt mine, the non Ti model, and procedure was the same. When you had the stanchions out did you inspect them for damage? And not only a visual inspection but feel them with you hands.......like ....well.......you know. But seriously make sure you run you hands all over them as you can feel what you can't see a lot of the time.
    2011 SX Trail.

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