Former VWDieselParts.com Forum

OK, I can now answer my own question. The LDA's pressure makes no difference to the pumps internal pressure. My pressure was set to 3.4 bar at 1000 Engine rpm. That was about 4.1 bar at 1400 engine rpm, so I was of by about 1 bar. I tapped the pressure valve and got it spot on at 5.1 at 1400 engine ...

Hi Again, So I've been playing with my pumps pressure, Currently set at 3.4bar at 1000 Engine RPM. I have one more question. Does the Throttle position and LDA position affect the pressure at all. I'm asking as I set the pressure with the idling adjusted to 1000, throttle closed. I phoned a local di...

Quote: I was reducing the pressure on one of my pumps, and in punching the pin back upwards I'm pretty sure I confirmed a suspicion I had that the 'fixed' upper pin will not move back upwards until after the spring is squashed so compactly that it is permanently shorter than before: the pressure was...