I'm going to have a crack at a foam wiper seal service on my fox forks tonight. The one question I have is the amount of oil to use topping up the oil in the lowers.
The mojo video says top up with 5ml of suspension fluid. Yet there is a chart on the fox website with much greater quantities to use. I guess this is for a full oil change. If I wanted to change the oil fully what would I need to do? What happens if I use more than 5ml?
Questions, questions......
I'm gonna be doing a seal service on my Fox's soon and used this site to be aware of how much oil is needed.
http://service.foxracingshox.com/consumers/index.htm
click on 'service' then 'oil volumes'. you just have to then scroll down till you model is listed.
Yeah - well actually thats whats confusing me. So for my 2011 Float R's it says damper side 155ml / spring side 30ml.
And on the mojo 'how to guide' it says just to top up with 5ml in each leg....
what number are yours on that list. For example mine are number '37'. I've had a look down the list and couldn't find your forks, I'm probably just missing it.
*edit*
I've had a look again.
155ml goes in the damper lower.
30ml goes in the spring lower.
5ml is poured into the air chamber (beneath the air valve).
I haven't seen the 'mojo how to guide' so am unaware as to why they've mentioned to top up with 5ml.
I would have thought if you were replacing, and not just cleaning up, the existing seals then emptying all the oil from the fork and using new stuff would be the way forward.
5ml is poured into the air chamber (beneath the air valve).
Thats float fluid that goes in there, not damping / lube oil!
the 5ml is just for lubrication
These ones:
67) 2010-2012 36 FLOAT 160, 130 & 100
(O/B R damper)
All done - was pretty straight forward although I had the wrong crush washer for the 10mm side so I'm guessing I'll need to check that for leaks.
Also the wiper seal on that side was bone dry - so i'm wondering if it was leaking already.....
5ml is poured into the air chamber (beneath the air valve).Thats float fluid that goes in there, not damping / lube oil!
yep, I should have clarified that.
and yes, as snowpaul mentioned its for lubrication. I've asked the question on here and the response I got was to lubricate the seals on the piston.
Did you replace the seals or simply remove and clean them? Reason I ask is that the wiper seal service kit comes with crush washers.
bigyinn - the mojo cheat sheet i have in front of me contradicts that.
According to this you soak the foam seals in float fluid before replacing.
Then when you slide the legs back on, [i]'Ideally using a syringe, with 5ml of fox suspension fluid (NOT FLOAT FLUID) in each leg through the bottom of the fork'.[/i]
^^^^^^ It actually says that.
As long as you don't invert your forks as per the video, all you will need is a dribble in each leg on reassembly.
If you invert, dependant om fork, you will lose considerable oil volume....
As long as you don't invert your forks as per the video, all you will need is a dribble in each leg on reassembly.
If you invert, dependant om fork, you will lose considerable oil volume....
Yeah. Just discovered that!!!
Do they drain the oil on the mojo video or just turn the bike upside down and remove the lowers, clean the seals and pop back together? if its the latter then you only need to replace what drips out. However if thats all you are doing the oil will still likely be filthy and you really wont have gained anything, you might as well do it properly and replace all the oil.
Edit, too slow
I never understood the logic of using float fluid on the foam wipers, as the oil in the lowers isn't float fluid, so it'll just end up mixing together anyway. Plus I'd hazard a guess where the float fluid is much thicker, you run the risk of getting the rings twisted.
Float fluid is used primarily as an air sealant, then a lubricant.