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Suspension, ride height, pitching etc.
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Tjensen   
Mon Apr 08 2013, 07:41pm
Joined: Jul 17 2012
Member No: #954
Location: Bergen
 Probably Citroen tried their best under the circumstances. There is a lot of other properties than the hygroscopic aspect- LDS is a little hygroscopic and a lot of people miss the old LHM. When it is in the same family as brake fluid it might be easier to find gasket materials, hoses etc ?
gmerry   
Tue Apr 09 2013, 07:26am
Joined: Dec 11 2009
Member No: #21
Location: Scotland
 LDS - Put it in the same family as brake fluid??? For seals etc???

Don't think so. LDS is PAO with mineral oil and other additives (as previously stated)

Regards
G
TycoonX   
Tue Apr 09 2013, 09:34am
Joined: Aug 15 2012
Member No: #988
Location: Podhajska
 The LHM is based on mineral oil and the LDS is based on synthetic oil. The main difference will be the wear of moving parts. LDS cant be used in LHM car because it is not suitable for brakes heat. And LHM cant be used in LDS car because that will cause a many faults of system (Tested by one member of C5 forum).
Hattershaun   
Sun Apr 14 2013, 03:06pm
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire, UK
Hattershaun wrote ...


............I am waiting for the re gassed spheres to come back from Plaiedes, they were due this week and will be sent to BLAutos. They were sent as part of a job lot including a DS steering rack, so I guess will be returned when the whole lot is ready.



Update.

All seven spheres have been regassed by Plaiedes, all were pressure checked by me prior to fitting, pressures were all exactly as specified, had them fitted on Friday and have driven 250 miles since, mainly motorway.

Result is a wonderful smooth wafting ride quality without any pitching or front end bouncing, just as I remember from when the C6 was new.

So, car and driver both very happy.
Pappnase   
Sun Apr 14 2013, 07:24pm
Joined: Sep 30 2012
Member No: #1044
Location: Bonn
 I don't quite remember, did you mention how much Pleiades do charge for regassing a sphere? Papp
Hattershaun   
Sun Apr 14 2013, 08:01pm
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire, UK
 I've not yet seen the invoice from my Citroen specialist, I believe the cost is £25 per sphere, probably with 20% tax on top of that.
diyjoke   
Mon Apr 15 2013, 09:37pm
Joined: Jan 27 2011
Member No: #354
Location: Wales
 I'm jealous - had the front two spheres changed but they couldn't change the front stiffness sphere until "they saw it"? Don't know if having seen it this will make any difference the next time I go there.

The overall ride is improved but I still don't think it's right. When my shift pattern coincides favourably with one of the get-togethers - which they haven't done once yet, not since I joined this forum: I'll take a trip to one of the meetings. I'll enjoy the drive - albeit not as much as I should. Perhaps someone would also be kind enough to drive my car and see if it's not just my imagination?

I'm thinking the ride should be somewhere like the XM I had.

Could you tell me where Plaiedes is (not where to look on a cloudless night) but the Citroen place; do they or can they recharge the spheres in situ?

The pitching is much impoved but the ride is still a bit crashy and not as wallowy as I'd imagine but only at the front. I'm planning a road trip the end of May and it would be really nice to have this sorted before that (Pompei and back in 5 1/2 days).

By the way, the car's only done 32k; registered Sept 09 but built Feb 07. 4k on the clock when I bought it 16 months 'old' - no real problems apart from the local main agent every time I took it in there but that's another story.
Regards,

Barry
Hattershaun   
Mon Apr 15 2013, 10:19pm
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire, UK
 Pleiades,
Unit 12A, Brookside Industrial Estate,
Sawtry,
Cambridgeshire,
PE28 5SB
Tel, 01487 831239

Spheres need to be removed from the car before being regassed. Mine were sent in the post.

It's worth talking to them, as they may be able to do this for you if you drove there and waited while they did the regassing.
gmerry   
Wed Apr 17 2013, 08:12am
Joined: Dec 11 2009
Member No: #21
Location: Scotland
 Interesting that Plaiedes can recharge the grey saucer spheres.

I presume this has to be done before the internal spikes have done their job.

Probably also not worth doing to cheap aftermarket spheres that in some cases rapidly lose their charge (inferior diaphragm material).

Sounds like a sphere tester is an essential tool for C6 maintenance as there would presumably be no point in sending totally flat spheres for charging.

Do you have a photo of the recharged spheres, presumably showing the valve that has been fitted.

Regards
G
Hattershaun   
Thu Apr 18 2013, 05:28am
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire, UK
 I'll take a pictures of the spheres for you, so you can see the end valve/plug
It looks very similar to the one on a genuine Citroen sphere.
Pleiades paint the whole sphere after regassing, so whatever is used to plug the whole is covered up with paint.

If the diaphragm is damaged and/or the spikes have pierced it then regassing won't work.
I would have thought Pleiades would pressure check a sphere and assess it's suitability for regassing before going ahead.

A pressure tester certainly makes life much easier. There are plenty of people who've made their own from an old HP pump, a suspenion cylinder or pressure regulator, gauge and a few pipes. There are pictures on the French Car Forum, I'll see if I can find one.

If you remember I bought a set of Suplex spheres, which turned out to be 3 years old and had lost 5 bar of pressure. I have had my Citroen original spheres regassed where ever I could, but as the two rear centre spheres were starting to rust I have used the Suplex spheres and they have been successfully regassed.
Time will tell if they hold pressure for a long time. If they lose 5 bar in 3 years then I cold live with that.
If you had a Suplex sphere fail completely within a year it may be covered by a warranty, surely worth asking.
Hattershaun   
Thu Apr 18 2013, 08:21pm
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire, UK
 Here are my regassed front outer spheres.
Colour is slightly lighter silver than the originals
Pappnase   
Thu Apr 18 2013, 08:36pm
Joined: Sep 30 2012
Member No: #1044
Location: Bonn
 The spikes. I have seen pics with cross sections of Cit spheres. But I cannot at all believe these do really puncture the diaphragm. Are there any known cases where this has happened?

The idea somebody would design sharp spikes into a sphere sounds like complete lunacy to me. Reminds me of the Iron Maiden. I don't even like their music.
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