Fox 36 lower leg an...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] Fox 36 lower leg and air spring service.

9 Posts
8 Users
0 Reactions
1,641 Views
Posts: 0
Free Member
Topic starter
 

I've just serviced my Fox 36 Grip 2 forks, changed oil (correct oil was used in either leg), fitted a new Push seal kit. Cleaned the air spring internals fully and got rid of the big dollops of grease around the upper air spring. Re-greased sparingly with Slickoleum.
Before the service the forks were working fine, no stiction etc...

Although I've not yet been out to ride the bike I've noticed the forks now have stiction when leaving them for a few hours.

Is this normal after a service, do the new seals need time to bed in, or have I done something wrong?


 
Posted : 20/04/2020 6:02 pm
Posts: 93
Free Member
 

following as i'm just about to strip mine


 
Posted : 20/04/2020 6:17 pm
Posts: 5661
Full Member
 

How have you determined that it's "stiction"? Bear in mind this would be the very first few mm of travel to get the stanchions moving in the seals.

Did you equalise the negative chamber properly, and ensure the air shaft was fully extended when fitting it?

Did you pack the seals with slickoleum?

Some stiction on the first press after sitting for a while is normal as the seals will have been sat static for a while.

If it helps, this is probably the best 36 service video on t'internet.


 
Posted : 20/04/2020 6:56 pm
Posts: 3879
Full Member
 

Mine "stick" if left. Once moving they're fine.

Done two lowers service. Loads of oem grease when I did the first one. Second i did when I went from a 160mm to 170mm shaft.


 
Posted : 20/04/2020 7:17 pm
Posts: 24
Free Member
 

My brand new ones felt like this so I would not worry, see what they are like after a few rides.
One thing of note to anyone else doing this is that if you follow the Fox video it was done pre Grip 2 damper, it tells you that
when the lowers are off to push the damper rod in to keep it out the way and avoid marking it, however on the Grip 2 when you do this it squeezes all the oil out the damper and then needs bleeding ( As I discovered )so for a lower leg leave this alone and just be careful or wrap a rag around it.


 
Posted : 20/04/2020 7:58 pm
Posts: 0
Free Member
Topic starter
 

Thanks for your reply @ta11pau1. I'd followed exactly the same YouTube 'how to'. This one from Worldwide Cyclery was pretty useful too.

https://www.worldwidecyclery.com/blogs/worldwide-cyclery-blog/how-to-servicing-fox-suspension-forks

I made sure the air spring was fully extended before re-inserting. I didn't pack the spring with 'loads' of slickoleum, a few of the 'how to's' I've followed recommend just making sure the o-rings are greased up. Most 'how to's' suggest too much grease can be detrimental .

I'm pretty sure I've equalised the negative chamber; pumped the forks up to 25psi, cycled them through a few times, repeated for each additional 25psi.

Maybe I'm just getting mixed up with the term 'stiction'. I thought this referred to the fork sticking at the start of the travel, the various comments posted would suggest this is actually quite normal?


 
Posted : 21/04/2020 10:24 am
Posts: 5661
Full Member
 

probably just the normal bit of resistance when the bike has been sitting for a little while then, my fox 36 and dpx2 are the same, the first compression takes a little more effort than normal.


 
Posted : 21/04/2020 10:32 am
Posts: 6856
Free Member
 

Yes, new seals always feel stickier than the ones that came out IME (N.B. I've never owned 36s, I'm talking about RS forks). They'll need a few rides to soften up.


 
Posted : 21/04/2020 10:44 am
Posts: 6468
Free Member
 

On a related note Ive just put a Luftkappe on my 2018 36 Elite Fit4 and its made a big improvement.


 
Posted : 21/04/2020 12:26 pm
Posts: 320
Free Member
 

im guessing this is just the first time you push down on the forks, after which it goes away unless you leave the bike to stand for a while. if so its normal.


 
Posted : 21/04/2020 12:39 pm

6 DAYS LEFT
We are currently at 95% of our target!