The original MK2 Jag one (bolted to the back of a lucas Dynamo) ran about 850PSI I believe, the later XJ6 pump was around 1200PSI so way too high for what you are after I would suggest.
Thank you. That answers the question that I asked. A power steering pump would have more (way more) than adequate pressure.
As someone who knows to what I am referring, do the power steering pumps have a pressure relief valve built into them ?.. If so, does the bleed feed back to the reservoir or just 'short circuit' to the inlet ?
The Jaguar MK2 power steering pumps have the relief valve built into them and I assume thats the standard arrangement for most (if not all) PAS pumps, the valve must just short circuit to the inlet as they only have two pipes, one from the reservoir and one to the steering box so no ability to return to reservoir.
Just to add that i've fitted a rack conversion to my latest MK2 that uses an electrically driven pump from a Vaxhuall Astra, this is a fairly simple pump but does I belive have a speed input that isn't used on the MK2. If you could get this to work you might be able to turn the pump and hence the pressure down, not sure if I would trust this for engine lubrication though!
Thanks for your comments. Interesting about the 'short circuit', a bit like the 'dump valve' in a hydrostatic transmission.
There is quite a lot for me to continue thinking about.
