Hi all. I've had a bit of a disaster this week - a river of LHM from the front anti-sink valve, the seal has gone on one of the ends. It doesn't look too difficult to repair, however I've spoken to Martin at Pleiades who very kindly sent me a photo of what a replacement should look like - hence the puzzle. There are only 4 pipes coming out of mine whereas there should be 5. Mine has both ends blanked off. He says he can't recall seeing one like it.
Now I could just get it repaired, but I am left wondering that if mine has been repaired/adapted/botched in the past, then where on Earth should the missing pipe go to, since the anti-sink did actually work before, although it had started to sink fairly quickly in the days just before the leak.
Anyone got any thoughts on this?
Btw it's a 99 Xantia 2.0 16v Exclusive Hydractive II
Anti-sink valve puzzle
Moderator: RichardW
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The 5 pipes would normally be:-
1. In - High Pressure feed from Security valve
2. Out - Feed to Hydractive Electrovalve.
3. Out - Feed to Height Corrector.
4. In/Out - Connection to Height Corrector for up/down height control.
5. In/Out - Connection to Hydractive block for up/down height control (through flow from 4).
If you only have 4 pipes then could it be a non hydractive anti sink valve that's fitted and maybe there's no pipe to the front electrovalve? I can't find a pic of a non hydractive anti sink, so, I'm only guessing. Then again, he must have had an anti sink problem as well because it's a much bigger job to change it than just 2 spheres.
It maybe that the previous owner has turned the front end into a non-hydractive version because of electrovalve problems. He'd also have had to fit non hydractive spheres to the front struts.
My Activa had Non Hydractive front spheres on it when I got it. I don't think the front electrovalve was working and the softer speres were fitted to overcome the bouncyness.
1. In - High Pressure feed from Security valve
2. Out - Feed to Hydractive Electrovalve.
3. Out - Feed to Height Corrector.
4. In/Out - Connection to Height Corrector for up/down height control.
5. In/Out - Connection to Hydractive block for up/down height control (through flow from 4).
If you only have 4 pipes then could it be a non hydractive anti sink valve that's fitted and maybe there's no pipe to the front electrovalve? I can't find a pic of a non hydractive anti sink, so, I'm only guessing. Then again, he must have had an anti sink problem as well because it's a much bigger job to change it than just 2 spheres.
It maybe that the previous owner has turned the front end into a non-hydractive version because of electrovalve problems. He'd also have had to fit non hydractive spheres to the front struts.
My Activa had Non Hydractive front spheres on it when I got it. I don't think the front electrovalve was working and the softer speres were fitted to overcome the bouncyness.
Cheers, Kev
02 plate C5 2.2 Hdi Exclusive SE (now 170k miles 03/21).
Used to have:- Xantia 1.9 TurboD SX. 1996 Blue & 1998 Silver Activa. + 1992 BX TZD Turbo.
02 plate C5 2.2 Hdi Exclusive SE (now 170k miles 03/21).
Used to have:- Xantia 1.9 TurboD SX. 1996 Blue & 1998 Silver Activa. + 1992 BX TZD Turbo.
Thanks for that Kev, Ill have another look tomorrow to see if I can identify where the pipes actually go, and to see if there's a stopped off port somewhere where a pipe might go.
I've got it off now, the leaking end simply screws off, it looks like it just needs a new o-ring. This is the end that's supposed to be blank, I can't even see why there's a removable end in the first place - unless there's a six port system out there and this is a standard valve
Regarding the electrovalves - they both work(ed) in that during the timeout both front and back suspension can be bounced, then afterwards both become hard as expected. And just to make it more complicated, I got underneath the back end today and discovered the back valve is the same as the front
I've got it off now, the leaking end simply screws off, it looks like it just needs a new o-ring. This is the end that's supposed to be blank, I can't even see why there's a removable end in the first place - unless there's a six port system out there and this is a standard valve
Regarding the electrovalves - they both work(ed) in that during the timeout both front and back suspension can be bounced, then afterwards both become hard as expected. And just to make it more complicated, I got underneath the back end today and discovered the back valve is the same as the front
Hi Guys,
According to the scans I have, there are 3 types of anti-sink valve, but all of them have 5 ports, see below:
http://homepages.igrin.co.nz/simon/imag ... ink-06.jpg
The rest of the anti-sink manual can be found here:
http://homepages.igrin.co.nz/simon/imag ... /antisink/
Hope this helps
Regards,
Simon
According to the scans I have, there are 3 types of anti-sink valve, but all of them have 5 ports, see below:
http://homepages.igrin.co.nz/simon/imag ... ink-06.jpg
The rest of the anti-sink manual can be found here:
http://homepages.igrin.co.nz/simon/imag ... /antisink/
Hope this helps
Regards,
Simon
Simon
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2016 Nissan Leaf Tekna 30kWh in White
2011 Peugeot Ion Full Electric in Silver
1977 G Special 1129cc LHD
1978 CX 2400
1997 Xantia S1 2.0i Auto VSX
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2016 Nissan Leaf Tekna 30kWh in White
2011 Peugeot Ion Full Electric in Silver
1977 G Special 1129cc LHD
1978 CX 2400
1997 Xantia S1 2.0i Auto VSX
1998 Xantia S2 3.0 V6 Auto Exclusive
Thanks for all the replies guys, the resource link from Mandrake was especially useful. I think I may have solved the puzzle
According to service.citroen parts drawings, after RP 8280 (ie. my vehicle) there are only 4 ports shown being used, whereas earlier drawings show 5. Mine are 2 to the height corrector, one to the safety valve and one to the front electrovalve/control block.
Now I know how easy it is to remove, I'm going to source a new O-ring, screw it up and give that a go before laying out any more for a new valve.
According to service.citroen parts drawings, after RP 8280 (ie. my vehicle) there are only 4 ports shown being used, whereas earlier drawings show 5. Mine are 2 to the height corrector, one to the safety valve and one to the front electrovalve/control block.
Now I know how easy it is to remove, I'm going to source a new O-ring, screw it up and give that a go before laying out any more for a new valve.