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Originally Posted by TipStylez
Yeah, but the thing is, they change stiffness at each adjustment. That what is making me think they are not blown.
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The valving can be fine even when the strut is "blown". There is a nitrogen charge inside the strut, the nitrogen is a gas so as the strut shaft enters the body it compresses to make up for the displacement of the shaft. Oil is not compressable. The nitrogen is also under pressure, this helps to keep the oil from foaming when being forced through the valving. If the nitrogen charge is gone or depleted the oil will quickly foam and then be basically useless. There are also seals around the piston, if one of those is damaged the resistance provided by the strut will be reduced considerably, though it will still offer some resistance, so changing the dampening setting will still effect how hard it is to push the strut in.
So basically you can have them dyno'd, or stop your bitching and put them on.