Fox 36 rhythm airshaft help

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Fox 36 rhythm airshaft help
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flag Goldencaveman
Posted: Nov 26, 2022 at 15:18 Quote
https://youtube.com/shorts/L-XgpCtvWl4?feature=share
need a little help. Was servicing my airshaft and correct me if I'm wrong but it shouldn't spring back like this right? I thought this issue was caused by too much grease but as you can see in the video there is only a small layer of grease. Any help is appreciated.
flag mrpfp
O+
Posted: Nov 27, 2022 at 12:33 Quote
That’s the negative air chamber working. Compressing the shaft is expanding the negative chamber volume.
flag Goldencaveman
Posted: Nov 27, 2022 at 13:55 Quote
So it should be springing back and not staying in place? I thought it was supposed to equalize with the positive air chamber?
flag mrpfp
O+
Posted: Nov 27, 2022 at 14:59 Quote
The negative chamber transfer/balance port is blocked when the shaft is compressed (sealing the negative chamber) but open when extended.
If you performed your above test again, having removed the square seal on your piston to break the seal on your negative chamber, the shaft would not extend back. Both sides of the piston would be exposed to atmospheric pressure in that scenario.
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