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Firm suspension after Pleiades sphere recon |
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tpr
 
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  Member No: #5543
Location: Newbury |
Hi all As recommended by Robert at BL Autos after finding my (presumed original) sphere pressures down a bit, I had my spheres reconditioned at Pleiades last week. Now the ride does not seem right; I am feeling all the bumps. It was especially bad on a straight and fast road that is not entirely smooth (A30 from Sutton Scotney to Stockbridge). So today I fired up the ol' Diagbox, which I don't have much experience of using. No suspension or AMVAR faults reported other than U1205 lack of communication with the steering wheel angle sensor. I tried some actuator tests. The AMVAR ones seemed ok, although with a much more noticeable difference on the rear than on the front. The rear firmness one was ok. The front firmness one did not make any difference; it seems hard either way. (This is judged by trying to bounce one corner or end by hand.) My guess is that the recon of the front centre sphere failed and it is now locked hard with no pressure, so switching it in for a soft front does not make any difference. Is that a reasonable guess? Not casting any aspertions on Pleiades; we all know that anything can happen in Citroën ownership and it usually does. But I just wanted to try and figure out what the problem might be before making the two-and-a-half hour each way trip over there again. I guess I could save the trip if I could find someone more local to just replace that sphere, and send the recon one back to Pleiades to see what they think of it. But my friendly local garage isn't very happy with doing suspension stuff where I would need to turn up with the Diagbox/Lexia to depressurise then repressurise and bleed. Any ideas for someone more local to me in Newbury (M4 J13)? |
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MGmike
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   Member No: #3151
Location: South Queensferry |
Your diag seems to be sound and the centre regulator sphere appears to have failed after regassing. I've had a 2.2 in for repair with failed regassed spheres so I can confirm it happens unfortunately. I don't live near you to help but I can send you a used sphere to change if you're up for it? |
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Tjensen
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 Member No: #954
Location: Bergen |
I had an experience with a regassed sphere (on a DS) that suffered an internal explosion. Nitrogen gas all inside the system with interesting and surprising effects. Healed itself, but of course i needed a new sphere. | ||
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tpr
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Member No: #5543
Location: Newbury |
Thanks Mike, but I think I need to find someone else to do the actual change. | ||
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MGmike
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Member No: #3151
Location: South Queensferry |
tpr wrote ... Thanks Mike, but I think I need to find someone else to do the actual change. No worries. The only garage I know closer to you would be Southways Automotive in Fareham but I suspect he'll be well booked up. There's no harm in asking 
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tpr
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Member No: #5543
Location: Newbury |
An update: I went back to Pleiades, and the front spheres were all at exactly the right pressure. Ride seems fine now; maybe I was just being over-fussy on a bumpy road. So all happy now. (Back to BL in a few weeks for MOT, service, and possible EGR valve problem.) |
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tpr
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Member No: #5543
Location: Newbury |
Also, something I learnt there: To do something like remove/replace a sphere, they don't need to depressurise using Lexia. They just put it into low position, turn off engine, then lift the car up leaving the wheels dangling (loosen LDS filler cap first), and there is virtually no pressure left in the system. |
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C6Dave
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  Member No: #1
Location: Northumberland |
tpr wrote ... To do something like remove/replace a sphere, they don't need to depressurise using Lexia. They just put it into low position, turn off engine, then lift the car up leaving the wheels dangling (loosen LDS filler cap first), and there is virtually no pressure left in the system. Thanks for that tip, I'm sure it will help others in the future. |
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