[haromtnbiker]

My pushed fox dhx 5.0 on my sunday makes a weird "swooshing" noise once it reaches about 50% of travel. This is only when it rebounds fast. If I get the bike into its travel and hold it, no noise is made. I can't tell if the noise is coming from the rebound or the compression stroke, but it is pretty loud. Possibly something from the air assembly?

 

[Huck Banzai]

oil goes through shims/ports makes whoosh!

had your damping turned out in the past eh?

 

[IH8Rice]

i thought Push uses nitrogen in their rebuilds

 

[boogenman]

swoosh makes you ride bicycle faster on the downhills. Swoosh makes Tiger woods buy big boat to pick up and marry supermodel.

 

[MobileChernobyl]

sounds like you got some-o-dat air (or nitrogen) mixed in wit that there oil splippery stuff you gots in your shox causing cavitation when there is a negative pressure from the shock rebounding causing the air bubbles in your oil to expand and be pulled through the shims, and therfore "Swooshing" as you say. Just a guess.

 

[ridetilludie]

My dh bike goes squishy squishy when I ride it.

 

[Yeti]

sounds like you got some-o-dat air (or nitrogen) mixed in wit that there oil splippery stuff you gots in your shox causing cavitation when there is a negative pressure from the shock rebounding causing the air bubbles in your oil to expand and be pulled through the shims, and therfore "Swooshing" as you say. Just a guess.

you make it sound like cavitation only happens when air is in the fluid... it also happens when there is only liquid fluid present before the cavitation happens.

 

[gonefirefightin]

do you have a nike sticker on your shock?

 

[Sverre]

When I got my gf´s dhx back from push, they had noted in the attached letter that the shock would make much more swooshing noise than before, and if was totally normal. This was because the increased oilflow thru shims.

 

[slowitdown]

i thought Push uses nitrogen in their rebuilds

I'm pretty sure nitrogen is the biggest percentage of air, elemental gas-wise.

 

[dhkid]

I'm pretty sure nitrogen is the biggest percentage of air, elemental gas-wise.

^ thank you! i was just about to go there.


to the OP, my pushed shock made more noise then the stock dhx too. unless you are getting dead spots where there is no damping, i wouldn't worry about it.

 

[haromtnbiker]

So basically there is no way to resolve this? The shock feels good it's just very loud.

 

[IH8Rice]

I'm pretty sure nitrogen is the biggest percentage of air, elemental gas-wise.

lthumbsdown:

 

[rayhaan]

So basically there is no way to resolve this? The shock feels good it's just very loud.

no way to resolve this, unless you revert to your original setup of the shock prior to it being PUSH tuned.

 

[Spokompton]

So basically there is no way to resolve this? The shock feels good it's just very loud.

It's supposed to be loud. It wasn't load before, because it wasn't doing anything.

 

[Huck Banzai]

Its Called Damping!

Eek!