Mine are leaking at the piggy back and I’m gonna replace the end caps with Schmidty racing caps and nitrogen. Mines doing the same thing and I’m hoping that helps


Sent from my iPhone using RZRForums.net

 

Either the stock end caps have leaked and the nitrogen has leaked out. Or the seals are shot nd the gas has leaked into the shock. Mine did both. I sent them back to FOX and they rebuilt all 4 for about 100 bucks apiece. I installed the Schmidty racing caps prior to the rebuild so I can monitor and adjust gas pressure going forward.

 

Same here Super Duke, mine leaked into the shock also sent in for a rebuild. I also replace my end caps with Schmidty's.

 

This seems to be the best course of action for this run of fox shocks. They perform well when working properly and although it’s more cash out the door it’s much cheaper than upgrading.

 

See if you can push the bottom of the shock reservoir up into itself. If you can than the gas charge is gone. If you cant than the gas has migrated into the shock body. The shock is still pressurized but the oil is full gas and not dampening much.

 

Have a full set off of a 2015. They were take off's with very little use.
No leaks ready to bolt on. Make me a reasonable offer.......
Regards,

 

Mine did the same, was the stock crap caps leaking the nitrogen. I installed the Schmidty caps and recharged now all is good.

 

I have one that has started leaking, where are you getting the caps? How hard is it to change and recharge with nitrogen?



Sent from my iPad using RZRForums.net

 

The Schrader valve end caps are available on Schmidty racing’s website. Easy to change. Buy be warned. When I changed mine it was obvious that more than 1 was bad. So off they went to Fox for a rebuild.

1. Drill out stock cap rubber plug with a small bit and drain nitrogen.

2. Push cap into now depressurized reservoir and undo spring clip.

3. Remove stock cap

4. Clean up the mating surface and slide in the new cap with new lubed o-ring. And reinstall spring clip.

5 pressurize to 200 psi and done.

 

As Superduke said. It's a breeze to do. Hardest part is taking them off the machine to take somewhere to be re-pressurized. Well, getting the spring clip out easily depends on your tools, but that's all. And it's not "busted", just leaked out it's pressure. I replaced all my suspension bushings trying to fix the clunk before I discovered this post. I did all 4 just on GP's...

Fox shocks fix (oil leaking and loss of pressure) with pictures

 

Once you fix the leak it’s a great idea to upgrade springs. The factory springs are sprung wrong for the weight of the machine and puts a lot of internal pressure in the shocks which causes the seals to fail in many cases.


http://www.kbmotorsports.com/utv-parts/suspension/shocks-en/eibach-pro-utv-spring-kit.html

 

Second this. Done springs on my 15’ 900, wish Id done it day 1...maybe 2 lol


-Sarge-

 

I had to call 6 tire stores to find one that still used Nitrogen.

 

I see it is recommended to put 200 psi in the shock, what is the factory setting? I already have ST springs. Glad this is done without pulling the springs, that can be a pain.


Sent from my iPad using RZRForums.net

 

Factory psi is 100. Schmidty recommends 200.

I was skeptical of doubling the pressure and because I’m smarter than everyone in the world I did 100, was still mushy in the front. Than 150. Better. Now I’m at 200 and it’s the best it’s been. I think the lower stock pressure was because of the rubber valve as mentioned on this site. The schrader valve has no problem with the extra psi. Who knew the the guy that designed it was right. I’m an idiot.

 

And I gave up trying to find a place to fill them and bought my own regulator and no loss gauge. Rented a tank for a few bucks and now I can do it my self for around 200 bucks. Totally worth it.

 

Dealer will do it. Call around. I found one that did it for free as long as I took the shocks off the machine and brought them in. I took him a pizza anyway. The downside is that he would not put more pressure in it than Polaris recommended.

Machine shops can usually pressurize with nitrogen I think.

Sent from my S9+ using Tapatalk Pro

 

I recently got my son a 2015 900S, it has a thumping sound when its off road in a bump, in driver rear. I swapped the rear sway bar bushings thinking that was the problem. I can still move the sway bar from side to side, is that normal?
Or do I have a busted shock, not familiar with these Fox shocks. Thanks

 

See post #11 in this thread.

Sent from my S9+ using Tapatalk Pro

 

Thanks man, your thoughts on the sway bar, I can move it from side to side, was worse before I changed the bushings.

 

Both of my RZRs rear sway bars have had some lateral play, almost required for them to function? The design doesn't lock them in place.

Sent from my S9+ using Tapatalk Pro