Pressure regulator has lost its tick

[awatt_bx19rd]

hello...
IMO...the Xantia 6+2 pump, the 6 piston feed steering and the 2 piston feed the suspension and brake...

and the 6 piston way has a limit pressure to keep steering safty when you turn to dead point...so if you use 6 piston (now you reduce to 3...)
the pressure will not reach to accuracy pressure of couse...

so your regulator will never tiiiick.....

Great suggestion. Thank you! I'll be checking this out tomorrow and reporting back with my findings.

[Van gogh]

If the hydraulic system has increased leakage of the two pistons will not be enough to power the suspension and brakes , and a pressure regulator will never cut off the pump .

[awatt_bx19rd]

icrc, you were bang on the money! Your knowledge about the inner workings of the Xantia pump has really saved my bacon here. Virtual for you, my friend.

All I did was disable the pressure limiting valve (wind the grub screw in all the way, thus defeating the spring) and now she's ticking like a beauty! Ahh... it's like music to my ears. The car works absolutely perfectly now. The steering too.

So now we know for certain that a Xantia 6+2 pump can cheaply and easily be made to work on a diesel BX if the circumstances call for it... Good stuff. Thanks for all your help, guys.



This photo shows the pressure limiting valve right at the top. It consists of a ball bearing, a ball seat, a spring, an allen key grub screw, and a 16mm locknut.

[jvbram]

Hello
My pressure regulator used to tick every 5 seconds but since renewing the rear trailng arm bearings it only gives a shudder every 30 seconds. I loosened the return pipe to the reservoir and there was a big flow of LHM. Also, during the arm job, I loosend the clamp on rear height controller and now the car wallows up and down. Would appreciate all advice.

[Jaba]

That all sounds very unsatisfactory. Have you adjusted the ride height and the gap on the height control lever from the front of the car. Usual warnings about getting under the car and changing the suspension height apply. A 30 second tick is not actually excessive.

[jvbram]

By gap do you mean the springy bar from the hight control should be centered in the lever window and not pushing one side or the other? And should this be done with the selector on normal height, engine running and car sitting on the wheels? With axle stands under the rear axle but not supporting it. I found it hard to rotate the clamp on the torsion bar. As a starting point, should the clamp bolt head face the front of the car or the ground? Many thanks.