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post #1 of 9 Old January 22nd, 2012, 12:21 PM Thread Starter
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Anyone knows Walker Evans gas Shock pressure ?

Hi to all. I did a search a could not find the answer.

I have a 2010 WE edition 50'' RZR with ''walker Evans'' gas shocks.
When i was riding with my friends yesterday and having a coffee in the middle of a trail, we started talkind and checking our suspensions and when i was pushing down on my friends front and back rzr bumpers, they were all dropping a good 4-5 inches and came back up when i let go... with mine, it does'nt go down more than 1 inch or two max. front and back, stiff as hell !?!

I tried adjusting the knob at ''soft'' and same thing, still stiff as hell.

My question is: What should be the pressure in the can beside the shock and can it change the stiffness of the shock?

I did a quick check with a digital pressure tester and it shows 150 psi with a somewhat white and gray oily discharge, is this normal?

i'm showing you a pic of my rear end (the RZR one! )

thanks for any information you can give me on these shocks.

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post #2 of 9 Old January 22nd, 2012, 12:28 PM
 
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Re: Anyone knows Walker Evans gas Shock pressure ?

I have the same rzr as you and mine was stiff like that. I'm not sure on the pressures but I had to adjust the spring preload to get it softer but the stock springs are so bad it made it squat a lot. You could try adjusting the preload but new springs would be best. You can get springs for those shocks from Walker Evans or the makintrax ones are suppose to work.
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post #3 of 9 Old January 22nd, 2012, 01:48 PM Thread Starter
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Re: Anyone knows Walker Evans gas Shock pressure ?

thanks for your input and i will check to readjust the preload but i would really like to know about the shocks pressure and if it is normal to have that milky oily stuff that came out of the little access valve.
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post #4 of 9 Old January 22nd, 2012, 01:56 PM
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Re: Anyone knows Walker Evans gas Shock pressure ?

they should be around 150 PSI but some of thier shock run as high as 200 psi and yes the white milky stuff is shock oil .. you do not want to check the chocks to often with a regular pressure gauge as there is not alot of volume of nitrogen in them so if you check them a couple of times they will be low ..

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post #5 of 9 Old January 22nd, 2012, 02:49 PM Thread Starter
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Re: Anyone knows Walker Evans gas Shock pressure ?

Thanks Johnny for clarifying the pressure and milky looking oil !
Now the only remaining information i need to know is if i lowering the pressure to let say 100 psi, will i have a bit more up and down travel or do i have to replace the springs to have the same travel as my friends regular 50 ''.
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post #6 of 9 Old January 22nd, 2012, 03:08 PM
 
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Re: Anyone knows Walker Evans gas Shock pressure ?

The pressure in the shock has nothing to do with the overall travel of the shock. Also... the pressure in a shock like this is not like the pressure in an old "Air shock" that you would have on car. The pressure is not meant to be used to tune the feel of the shock. The pressure is there to keep the oil from foaming, and fading with heat. Not to mention... that's not air at the shraider valve. It's N2. Please do not adjust the pressure of the nitrogen.

As far as the second part... the springs don't change the tavle of the shock either. (Unless they are binding)

If you think you need more overall travel... you need different shocks, with a different stroke length.

Finally, if you have oil at the valve... your diaphragm (or piston, depending what that shock uses) is probably leaking, and it's getting time for a rebuild.
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post #7 of 9 Old January 22nd, 2012, 03:17 PM
 
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Re: Anyone knows Walker Evans gas Shock pressure ?

Quote:
Originally Posted by Dr Honda View Post
The pressure in the shock has nothing to do with the overall travel of the shock. Also... the pressure in a shock like this is not like the pressure in an old "Air shock" that you would have on car. The pressure is not meant to be used to tune the feel of the shock. The pressure is there to keep the oil from foaming, and fading with heat. Not to mention... that's not air at the schrader valve. It's N2. Please do not adjust the pressure of the nitrogen.

As far as the second part... the springs don't change the travel of the shock either. (Unless they are binding)

If you think you need more overall travel... you need different shocks, with a different stroke length.

Finally, if you have oil at the valve... your diaphragm (or piston, depending what that shock uses) is probably leaking, and it's getting time for a rebuild.
+2, to everything the good Dr. said.

Cheers
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post #8 of 9 Old January 22nd, 2012, 04:45 PM Thread Starter
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Re: Anyone knows Walker Evans gas Shock pressure ?

thanks everybody... looks like i will have to call Walker Evans tomorrow to see if they have an outlet over here in Montreal...
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post #9 of 9 Old January 23rd, 2012, 07:09 PM Thread Starter
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Re: Anyone knows Walker Evans gas Shock pressure ?

Well like Dr Honda said and after talking to a reputable shock shop in my area, they need to be cleaned, re-sealed and refill with oil and nitrogene. I also learned that any shocks don't last more than a couple years and even less if you do very bumby and hard rides ( like i do) and will have to be redone again... At 140$ each for rebuilt (640$ for 4) every 2 years its starting to make a lot of money...
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