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Unread 08-25-2017, 04:52 PM   #1
t-rex grrr
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Default Coilover Nitrogen Recharge?

Hi Guys,

Can someone let me know what signs indicate that your coilovers need to be recharged with nitrogen?

Currently running Icons for 4 years, but don't have a ton of miles on them.

Thanks!
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F: Icon UCA / Icon 2.5 Extended Travel Remote Reservoirs
R: Radflo Springs / Icon CDCV Remote Reservoirs
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Unread 08-26-2017, 10:17 AM   #2
bulldog
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Normally you will hear a clunk when driving over speed bumps. Low speed and sudden compression, the floating piston will touch the top causing a clunk.
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Unread 08-26-2017, 12:55 PM   #3
t-rex grrr
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Quote:
Originally Posted by bulldog View Post
Normally you will hear a clunk when driving over speed bumps. Low speed and sudden compression, the floating piston will touch the top causing a clunk.
Thanks!
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Unread 09-04-2017, 03:12 AM   #4
karlduke
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What he said. The piston and shaft will be hitting inside the shock.
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Unread 09-12-2017, 08:36 AM   #5
billynath1988
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answers my question.. Best places to get them charged back up? can you do it on truck without harm? usual cost for checking adjusting all 4? I have radflo's and I believe they may need to be recharged.
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Radflo 2.5 resi's ext trvl w/700# coils, Radflo 2.5 rear, Radflo rear springs, JBA UCAS, Budbuilt skids and more.. see build thread for details

http://www.toyota-4runner.org/4th-ge...-v8-build.html
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Unread 09-25-2017, 08:03 AM   #6
billynath1988
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Just to follow up on this..

I called radflo and for my set up with the radflo 2.5 coil overs with resi up front and 2.5's in the rear.. Glenn at radflo told me to recharge to 250psi up front.. and 200psi in the rear.

I went to the local motorcycle shop, the tech who rebuilds shocks there said its extremely common especially in northern climates for racing style shocks to lose nitrogen charge over the course of seasonal changes and use. for optimum performance they should be recharged once a year. However as long as you dont run them empty or they have leaking seals, you can go longer between charges. You can also buy do it yourself kits for about 300 bucks. Similar to a power tank.

Keep all the charge ports facing out for easy access.. make sure you jack up each corner of the truck so the shock is at full extension when filling. its a simple shreader valve on the front coilovers and the rear uses a needle style. shop cost was 30 bucks.
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2005 4runner V8 SE
Radflo 2.5 resi's ext trvl w/700# coils, Radflo 2.5 rear, Radflo rear springs, JBA UCAS, Budbuilt skids and more.. see build thread for details

http://www.toyota-4runner.org/4th-ge...-v8-build.html
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