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Fox F90RL leaking oil

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Old 03-11-17, 12:05 PM
  #1  
curttard
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Fox F90RL leaking oil

Hi, I recently bought my first bike with suspension, a 2008 Stumpjumper with a Fox F90RL. Bike was in great shape, looked like it must have barely been ridden, shifts like a dream, suspension felt like riding on air (coming from someone who had never ridden anything but rigid though!).

I keep the bike in the back of my car, lying on its side, so I can ride during my lunch breaks at work. Now the left side of the fork is leaking oil. Could this just be because of the bike lying down? Do I need to replace the seals?
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Old 03-11-17, 12:58 PM
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Used bike you got, right? Oil seal leaks are a distinct possibility, then. might want to look up the service manual online..
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Old 03-11-17, 01:31 PM
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Yeah, I've got the Fox maintenance site all queued up. Would it be all the internal seals or more likely to be just the outer seals that would be the problem?
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Old 03-17-17, 04:41 PM
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Jeez, I had no idea all the stuff I need to potentially fix this...Fork seal kits, dust wiper seal kits, crush washers, oil, float oil, seal press tools, god knows what else.

Really makes me miss my rigid MTB I backed over in my car, and reminds me why I never wanted to upgrade.
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Old 03-17-17, 07:46 PM
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Just find a shop to do an overhaul. Lying on its side doesn't cause the fork to leak. After you get the bike back, you'll forget about the cost.

John
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Old 03-17-17, 09:15 PM
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corrado33
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My local shop rebuilds forks for 40 or 60 bucks. I forget which. Either way, not a bad price for a really expensive fork.

EDIT: Especially since decent replacements are $300-$1000. (And I'm not sure if I'd consider the ones at $300 decent...)

Last edited by corrado33; 03-17-17 at 09:34 PM.
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Old 03-17-17, 10:04 PM
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Fox forks are a pain to rebuild, but worth doing. I suspect the fork has never been serviced and is years overdue.
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Old 03-18-17, 07:00 AM
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Yeah, I'll call the local Performance shop and see which route will be more cost-effective.
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Old 03-18-17, 10:29 AM
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Fox charged me $150+shipping (to them only), for servicing my Float 36. They also replaced the bushings which eliminated the small amount of play in fork stanchions.
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Old 03-18-17, 09:14 PM
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Originally Posted by gsa103
Fox charged me $150+shipping (to them only), for servicing my Float 36. They also replaced the bushings which eliminated the small amount of play in fork stanchions.
That's ridiculously expensive. My local shop rebuilt my Fox Talas fork for $60. And that was including the $20 seals kit they needed to do it. (And apparently Talas forks are harder than even normal Fox forks.)

Last edited by corrado33; 03-18-17 at 09:28 PM.
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