Member Since: 19 May 2007
Location: Sussex
Posts: 28
Compressor air dryer
Hi all
I've got the dreaded suspension amber light when I drive which resets when I switch off. Before I pull away the suspension will raise and lower normally but not after the light comes on. Just had a look at the compressor air dryer cover and it looks like it's cracked and soapy water bubbles away nicely. I'm going to try the epoxy resin fix and have a quick couple of questions.
Can I remove the cover with the compressor in situ or does the whole thing have to come off?
Do I have to depressurise the system or can the pipes just be pulled off?
Any other parts I need apart from the captive nuts for the bracket bolts.
Is it worth doing anything else whilst the compressor is off (any of the Landyair products for example).
The middle bolt on the cover sheared. Does it need replacing (drill out I presume).
Thanks in advance.
Cheers
Glen
29th Sep 2014 1:39 pm
Alphamale
Member Since: 28 May 2014
Location: Belfast
Posts: 497
You need to at least remove the drier before taking off the lid to avoid the risk of spilling any of the silica. One other member (can't remember who) here did mention that he managed to take his off with the compressor in place. The most difficult part he reported was the accessing the screw securing the drier to the compressor body, followed closely by getting it off the bayonet fitting at the narrow end where it can become jammed with aluminium corrosion.
While you have it off consider putting in fresh silica-gel.
29th Sep 2014 2:12 pm
LandRoverAnorak
Member Since: 06 Mar 2014
Location: Surrey
Posts: 1172
That was probably me. There are some more details and pictures on my vehicle thread here:
Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 584
Taking the dryer off with the compressor is situ is possible but very fiddly. If your compressor has been off recently then probably not much more work to remove the whole lot.
Pete.IID, webasto software and workshop facility's available.
29th Sep 2014 6:18 pm
HughMartin
Member Since: 30 Mar 2008
Location: Aberdeenshire
Posts: 751
I have replaced the end cap on driers a couple of times without taking the whole drier off. The desiccant is held in the drier between two perforated plates so as long as they are still in place, you won't lose any. As a precaution, as you lever the end cap off (which you will need to do as it has a large "o" ring seal on the cap) have a poly bag ready to catch any desiccant.
The last drier I took off a compressor (which was already off the car) didn't come off very easily so I guess it could be a bit of a pig in situ. Depends on how much corrosion has set in.
29th Sep 2014 6:40 pm
Stooby2
Member Since: 24 Jan 2014
Location: Sarf Laandaan
Posts: 26
I've just had my compressor replaced - I can't spend long periods working under the car any more, so had to bite the (bloody expensive) bullet and get it replaced. I asked for the old compressor back though.
The screw circled in the photo is the one that holds the dryer in place. It was firmly rusted in and yes it rounded off immediately and had to be drilled out.
The cap is held on by Torx screws and some of them seemed to have been done up by a gorilla. Thankfully I have a small electric impact driver that is the mutt's nuts for these kind of jobs.
I did get the dryer off, but it was difficult - had to use a pry bar to help gently lever it off. The sealing o-ring on the spigot really ought to be replaced if the dryer was to go back on - it was in a sorry state.
Whilst you might get the dessicant out with the dryer in situ, I can't see how you'd get it all back in properly - it needs to be poured in and the cap replaced with it upright.
Click image to enlarge
1st Oct 2014 8:16 pm
Glen
Member Since: 19 May 2007
Location: Sussex
Posts: 28
Thanks for all the info, all very helpful.
One other quick question. How do the pipes come out of the orange and blue connectors? I've read that you have to push in a collet and then pull the pipe out. The blue one moves ok but the orange one doesn't! Presumably it will be a cut and repair job if I can't free it? To replace the pipes do I have to push down on the collet, insert the pipe then release? I assume the collet grips the pipe
Thanks for all your help as ever.
Glen
30th Oct 2014 4:58 pm
Alphamale
Member Since: 28 May 2014
Location: Belfast
Posts: 497
yes that's right, push in the coloured ring whilst pulling out the tube. Easily said, but if there is any corrosion of the collet further in you may have to use some gentle force.
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