Grrrrrr
Technician, Bodgit & Scarper Ltd
- Posts
- 19,914
- Location
- Buckinghamshire, UK. ('95 DT)
Just thought I'd share this little discovery.
I've been having issues with my air suspension (who hasn't at some stage?!). Anyway, I replaced the o-rings, the compressor seal etc etc but eventually tracked the problem down the little rubber inset on the bottom of the airbag valve piston. The indentations on mine had become very deep and then must have twisted or somesuch so it wouldn't make a good seal. Having bought a replacement for one (I had 2 duff ones) I decided to have a look at the duff one I'd taken out and see if it could be saved.
Attached are some photos of the rubber plug in the bottom of the valve piston, just so you can see what we're dealing with. I advise against taking it apart as far as the second photo though as it is a complete and utter bar-steward to get back in again!


The fix turns out to be remarkably simple. If you get a pin (I used a large safety pin) you can get down the edge of the rubber plug and tease it ever so gently until the plug is just sitting proud of the brass. Then, rub the foot on a piece of wet & dry on a flat surface until the rubber has been ground down level with the brass and no more rings are visible.
Reassemble the valve and refit. Job's a good 'un!
J
I've been having issues with my air suspension (who hasn't at some stage?!). Anyway, I replaced the o-rings, the compressor seal etc etc but eventually tracked the problem down the little rubber inset on the bottom of the airbag valve piston. The indentations on mine had become very deep and then must have twisted or somesuch so it wouldn't make a good seal. Having bought a replacement for one (I had 2 duff ones) I decided to have a look at the duff one I'd taken out and see if it could be saved.
Attached are some photos of the rubber plug in the bottom of the valve piston, just so you can see what we're dealing with. I advise against taking it apart as far as the second photo though as it is a complete and utter bar-steward to get back in again!


The fix turns out to be remarkably simple. If you get a pin (I used a large safety pin) you can get down the edge of the rubber plug and tease it ever so gently until the plug is just sitting proud of the brass. Then, rub the foot on a piece of wet & dry on a flat surface until the rubber has been ground down level with the brass and no more rings are visible.
Reassemble the valve and refit. Job's a good 'un!
J