[strictly]

1975 911S 2.7 ROW

On my 75 (recent purchase), i have an early style WUR (#008) no vac, just an in and out. My CONTROL pressures are out of whack (both cold and warm control). I'm not worried about that, i'm confident (now) of adjusting it for hot and cold, although i do need a new heater for it.

I have two questions

A) Throttle control regulator testing

The manual says, at idle, the warm control pressure is approx, 3 bar, then at part throttle, approx 3.8 bar, then at full throttle 3 bar again. Most of the warm control pressures i see are around 3 bar (i.e for other WURS).

I could not get the throttle control regulator to go from 3 bar to 3.8 and then back to 3 bar at full (or even back to 3 bar) when returned to "idle". (Engine off, FP running). So i can assume my throttle control regulator is probally tits. It would stick at 3.8 and not go back, i tried cleaning it, adjusting it on the screws etc.

Has anyone tested this, and had their pressure gauge swing up from 3 to 3.8 and then back to 3?

B) Correct Warm Control Pressure for a 008 SET UP

My main question is what is the correct warm pressure for a 008 WUR - is it 3 bar or
3.8?

The porsche manual it states if you cannot get the pressure at either idle or full throttle, then the throttle control regulator is faulty. It then said that if you cannot get the 3.8 pressure at partial throttle, then its the WUR not the throttle regulator.

I took the throttle valve apart, and could see that at idle and full the regulator was open for flow (either end of cam) but at partial it was closed, which means it is the WUR which is controlling the pressure at this point, and therefore shuld i set the WUR up warm for 3.8 bar?

I know its confusing. I will post the procedures from the workshop manual, and let everyone else read it to see if im reading it right