Xantia LHM Reservoir back pressure

Rostami · Unread post by **Rostami** » 19 Jul 2005, 21:16

Hi to all,
A citroen mechanic told me that the LHM reservoir on the Xantia has some back-pressure avoidance mechanism. As far as I could understand, if this mechanism is failing, there will be some pressure loss in the hydraulic system.
Can anyone please give some insight on this issue?
Rostami.

jeremy · Unread post by **jeremy** » 19 Jul 2005, 21:39

I think the mechanism is the top of the tank which doesn't seal!
See this discussion:http://www.andyspares.com/discussionfor ... C_ID=15064
Jeremy

Rostami · Unread post by **Rostami** » 19 Jul 2005, 21:52

Jeremy,
Thanks for your kind post.
The mechanic refered to a problem near the filters...I also find his talk quite strange because I would only imagine low pressure LHM circulating to and from the reservoir.

aengus · Unread post by **aengus** » 19 Jul 2005, 21:59

or is he referring to the low pressure returns to the reservoir, from the various suspension components? If so, then a failing component with high leak-back could/would result in some loss of pressure in that part of the system that may affect the rest of the hydraulics too (brake doseur is a common one on the XM)

Rostami · Unread post by **Rostami** » 19 Jul 2005, 22:05

Good point Aengus...Meybe he is detecting excessive flow into the reservoir. I´ll have to check it out!

Unread post by **Peter.N.** » 20 Jul 2005, 00:03

If the same ammount of fluid flowing from the reservoir is returning to it the pressure should be equal.