Hydraulic Pressure Regulator

zzf00l · Unread post by **zzf00l** » 19 Oct 2005, 12:23

Hi.
Xantia 1.9TD 1999
Can anyone offer some advise/info. please.
Developed massive hydraulic leak from (i think) the supply pipe where it meets the regulator.... this has happened before and was cured by replacing the pipe and the stud that was missing which supported the pipe to the gearbox. It seems that the slightest movement will crack the pipe/break the seal.
However this time closer inspection reveals that the regulator is loose and one of the studs holding it to the gearbox is missing plus the single stud right on the end of the regulator is also absent. Can anyone assist by telling me which size studs I should be replacing them with and if it is possible even to replace the one at the end of the regulator?

Stewart(oily) · Unread post by **Stewart(oily)** » 19 Oct 2005, 16:35

I believe the missing studs/bolts are M7 thread with an 11mm head, they are often omitted/broken when blunt fingered oaves do the clutch

they mistake Xants for 405s and find out about the PR too late to avoid breaking things.
Stewart

citronut · Unread post by **citronut** » 19 Oct 2005, 19:38

yes they are M7 11mm head,you will find them on all BXs,XANTS,CXs,GSs,XMs,all citroens with hydraulic suspention
regards malcolm

mpr1956 · Unread post by **mpr1956** » 19 Oct 2005, 21:13

I'm glad I read your post... My PR is loose, -I assumed it was to help absorb the vibration ! On a positive note, at least it is likely that the clutch was recently changed before I bought the car as claimed by the seller. Righto, I'll be off to get some bolts and secure my PR !

citronut · Unread post by **citronut** » 19 Oct 2005, 22:39

i hope you both dont find the threads in the clutch housing striped,as you have to be very carefull that you lockate them properly,especialy the two long ones that go right through the body of the PR
regards malcolm

zzf00l · Unread post by **zzf00l** » 20 Oct 2005, 06:44

Thanks for that....a trip to the local scrappy i think as M7 are fairly rare! the bolt theough the body of the regulator looks like it might be approx 75mm any idea about the one on the end of the regulator?

Ian

zzf00l · Unread post by **zzf00l** » 20 Oct 2005, 07:01

Stewart(oily) wrote:I believe the missing studs/bolts are M7 thread with an 11mm head, they are often omitted/broken when blunt fingered oaves do the clutch they mistake Xants for 405s and find out about the PR too late to avoid breaking things.
Stewart

Exactly ny thoughts,,,about 12 months ago I had bearings replaced in the gearbox (Citroen 'Specialist' in Oxford) and since then have been replacing/tightening.re-locating bolts. these are two I obviously missed.

zzf00l · Unread post by **zzf00l** » 20 Oct 2005, 11:18

Managed to get the bolt holding the regulator to the gearbox from a local scrappy in Brum.... a mint VSX 2.0i with oatmeal leather interior, how could someone do that ????

citronut · Unread post by **citronut** » 20 Oct 2005, 11:28

both of the front bolts and the end one are M7
regards malcolm

zzf00l · Unread post by **zzf00l** » 20 Oct 2005, 11:33

Thanks Malcolm... and no the thread in the box isn't stripped.... I know you were just trying to frighten me

zzf00l · Unread post by **zzf00l** » 14 Dec 2005, 20:52

Just thought I would give an update on the 'missing bolt' syndrome. For some time I have had a slight clutch judder which recently got worse accompanied by an 'exhaust rattle'.... To cut a long story short I cannot find ANY gearbox to engine bolts and the engine and gearbox have seperated by approx 12mm!!!!! If I could get my hands on the 'mechanic' at CITROEN CENTRE in Oxford I would gladly throttle him.

zzf00l · Unread post by **zzf00l** » 18 Dec 2005, 18:08

OK so there was one bolt left holding the box on... drives like a new car now.

FrenchLeave · Unread post by **FrenchLeave** » 19 Dec 2005, 22:48

Have you 'phoned Paul whatsisname and told him? It'd be interesting to hear his comments.

Derek

Unread post by **Peter.N.** » 19 Dec 2005, 23:54

High pressure pipe failure can also be caused by a duff accumulator sphere, but it usually goes at the pump end.

zzf00l · Unread post by **zzf00l** » 20 Dec 2005, 06:17

FrenchLeave wrote:Have you 'phoned Paul whatsisname and told him? It'd be interesting to hear his comments.

Derek

To be fair, I have purchased both my current Xantia's from him and the 3.0 never misses a beat...... but surely this is down to poor workmanship and very annoying, not to say costly. With regard to contacting him, whats the point! It will only wind me up even further