Rear Power cylinders/rams

Gregg1100 · Post by **Gregg1100** » 09 May 2006, 17:22

Hi All,
On this Xantia Mk2 1999, there has been LHM leaking from the cage where rams are fitted. There is NO leaks from the pressure side, it just seems to be from the return/breather side. There are no visible leaks fron anywhere on the actual cylinders at all, or in the little convoluted pipe/hose that stops dirt going onto piston.
I don`t know the layout inside the cylinder, perhaps there is a bit of blowby inside, and emerging out onto subframe.
Anyone had this at all. ???
I have had 6 Bx`s, and 3 Xantias, and this one of my son`s, is the first that I have seen with a leaky looking subframe.
Car rises up/down well, spheres may be shot at rear, pump ticks hardly at all---new accy sphere fitted.
Regards,
Greg

406 V6 · Post by **406 V6** » 09 May 2006, 19:07

This may be a remote shot given by me, but have you checked the height corrector for any leakage signs?

citronut · Post by **citronut** » 09 May 2006, 19:40

firstly what mileage has the car done,if the fluid is comming from the breather tube it probably is the main ram presure seals leaking
regards malcolm

AndersDK · Post by **AndersDK** » 09 May 2006, 19:58

citronut wrote:firstly what mileage has the car done,if the fluid is comming from the breather tube it probably is the main ram presure seals leaking
regards malcolm

... which can positively be diagnosed unclipping one of the small plastic pipes from the rubber gaiter. There will be a constant drippling - even seeping - flow then. Especially if suspension set to high (rear on ramps - wheels off for inspection).

DaveW · Post by **DaveW** » 09 May 2006, 20:29

I don't know what the set up is on Xantia's (haven't got around to to the rear cylinders yet) but I have seen a couple of BX cylinders that had pin holed due to corrosion underneath where the alloy cylinder comes into contact with the steel bracket.
With the cylinder off the car and all the grey crud scraped and brushed off, they look OK but as soon as you re-fit them they start to weep, or in the case of my neighbours car, to dribble.

Dave.