The red adjuster is attached to the inner part of the remote reservoir which, in turn, is bolted to the horizontal bracket holding it to the main damper tube.
The grey outer sleeve/tube of the remote reservoir moves up and down, according to the amount of gas pressure inside. It doesn't look as if it should move but it does.
The valve for adding the gas is at the bottom of this remote reservoir so if the pressure is increased the whole reservoir is forced down. When the pressure is reduced the remote reservoir moves upwards. When the pressure drops to zero, the remote reservoir comes to rest against the horizontal bracket holding it to the main damper.
This means it's a very easy visual check to see if your damper has lost its gas pressure, once you know what to look for. Basically, if the outer sleeve is resting against the horizontal bracket it's time for a rebuild.
Hope this makes a little more sense.
BenG said:notice how I read your post :wink:
Got my shocks back on the car today, i can't believe how different it is, very happy trophy owner again.
To check the 'gap' without taking the wheels off, you can just jack the front up. It creates enough space to place a camera under the arch to take some photos. Luckily I have the gap. Does that mean they are 100% OK?
How long to BG motorsport take to refurb them ? And if I take the car to them will the remove, refurb and then refit ?