| Author | Message | ||
     Roger Routledge New User Username: ringarolls Post Number: 26 Registered: 10-2015 |
Hi All I'm going to replace the accumulators on my '82 S/Sp and I'm sure I've read somewhere that they are self bleeding, is that correct? Thanks for any reply. | ||
| Mark Aldridge Frequent User Username: mark_aldridge Post Number: 825 Registered: 10-2008 |
Roger, there is a valve that you loosen on the Accumulator valve block that bleeds the accumulator back to the reservoir. Crack the valve on each valve block and run the engine for a few minutes and then retighten the valve.I do this a couple of times. I usually bleed the accumulators as a service item. The detail is in the workshop manual. Mark | ||
| Roger Routledge New User Username: ringarolls Post Number: 27 Registered: 10-2015 |
Hi All 6 months on and I have just removed my accumulators yesterday. I have removed the complete units and separated them on a work bench. My question is, one of the valves has been replaced which is painted black the other is painted green which I am assuming is possibly an original, is there any way that you can tell if the valve block was playing up. I was getting only about ten pedal presses before the lights came on otherwise all appeared to be okay. In the manual it talks about using gauges but I haven't got that equipment. Thanks for any reply. Roger | ||
| David Gore Moderator Username: david_gore Post Number: 4191 Registered: 04-2003 |
The ten "pedal press" outcome is a sure sign the accumulators need recharging/replacement as appropriate to their condition. Have you downloaded a free copy of the Spirit Workshop Manual from our Technical Library? https://rrtechnical.info/sz/05_sz.html | ||
| Alan Dibley Frequent User Username: alsdibley Post Number: 383 Registered: 10-2009 |
In the Citroen world these are throwaway items. They are IDENTICAL to the standard accumulators used on many LHM Citroens. Alan D. PS. DON'T do them up tight - hand-tight is plenty. If you don't believe it, try undoing a sphere when there is even a small pressure in the system. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 3327 Registered: 06-2009 |
Alan Dibley wrote, in part: PS. DON'T do them up tight - hand-tight is plenty. If you don't believe it, try undoing a sphere when there is even a small pressure in the system. Amen to that!! I only wish that everyone would read the torque tightening figures in the respective workshop manuals (or IETIS) and actually follow those. While what's specified is a bit beyond "hand tight" it's still not by much. And "really hand tight" will, in all probability, work just fine, thanks. More is not necessary and more is not better. Good enough works, and is what the engineers who designed this stuff specified. Brian | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 3328 Registered: 06-2009 |
So that it's here for future reference. Torque tightening figures for the accumulator to ACV from TSD4700:  Note: It's the same in later IETIS as well. Brian | ||
| Cliff Biggs Experienced User Username: cliffy Post Number: 105 Registered: 09-2021 |
Just a quick thought I was under the impression that the accumulators (brake and ride) were under different air pressures? Am I correct in that thought? I haven't had to replace mine yet but it may come up in the near future. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 3329 Registered: 06-2009 |
You are correct. Also note, and note well, that although both the brakes and suspension use what can be generically termed accumulators, Crewe uses that term ONLY for the ones used in the braking system. The ones used in the suspension (which are lower in pressure) are always referred to as gas springs in the Crewe-issued documentation. They also have different shapes, too, with the gas springs being larger and more ovoid:  These are both used in Citroen cars, and the markings on many available today are Citroen and they're most frequently painted grey, not green. The pressures are also most frequently expressed in bars. Gas Springs: 14 bars 203 PSI Brake/Hydraulic Accumulator: 60 to 64 bars 870 to 928 PSI You can find these values documented in the Workshop Manual. Brian | ||
| michael vass Frequent User Username: mikebentleyturbo2 Post Number: 787 Registered: 07-2015 |
I was chatting at a car show on Sunday, apparently JCB use a lot of accumulators on their machines. Mike | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 3330 Registered: 06-2009 |
Mike, I believe you are in the UK. What, if I may ask, is JCB (as in full name or type of business)? The question becomes are they using pre-charged, disposable accumulators such as are used on the SZ series cars, or something that they need to maintain and charge. This could, in theory, make them a source for nitrogen recharging for SY accumulators for DIY rebuilders if they actually do this routinely for their own. Brian | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 2325 Registered: 05-2012 |
Hi Brian To answer your first question JCB are the initials of Joseph Cyril Bamford, later Lord Bamford. In the 1940s he founded a tractor company and invented the first hydraulic tipper. The company now has about a 50% share in earth moving equipment worldwide. | ||
| Patrick Lockyer. Grand Master Username: pat_lockyer Post Number: 2565 Registered: 09-2004 |
Brian, JCB Fastrac spheres run a lower pressure ie 26-35 bar most Citroens run higher pressures ie 55-75 the RR Spirit sphere pressure you will have. Best value for replacements new spheres is Lizarte IMO have fitted all 7 to the C6 with no probs | ||
| michael vass Frequent User Username: mikebentleyturbo2 Post Number: 788 Registered: 07-2015 |
Hi Patrick, I don't think lizarte do them anymore ok. Yes Brian I live in Staffordshire UK the home of JCB, cheers Mike | ||
| Darryl Watson Experienced User Username: inox Post Number: 198 Registered: 04-2015 |
Hi Have a look at my post "Spheres cost" posted Oct 2021 Regards, | ||
| michael vass Frequent User Username: mikebentleyturbo2 Post Number: 810 Registered: 07-2015 |
Hi all Just replaced my spheres, what a pain number 2 is! Anyway the ones I took off (been on more than 10 years still not bad) were citroen spheres with the number 75497601 and 75 stamped in. Mybe where you live might be chaeper and more available. Mike |
