You should show only about 200 psi above what the regulated pressure is when you are not turning the steering wheel. That would be the differential pressure behind the flow divider valve added to the pressure of the regulated circuit. The reading you are getting down on the bottom plug is regulated pressure and should remain close to the same at all speeds. Sounds like you have a restriction but your steer to stop pressure sounds good. Steer to stop is controlled by power steering relief valve, regulated pressure is controlled by regulating valve and is the return oil from power steering so the steering pressure will always have to read regulated pressure plus the differential pressure build up behind flow divider.
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Today's Featured Article - Pitfalls of Tractor Engine Rebuilds - by Chris Pratt. The first pop after you have put the machine together with your own hands is exciting and pleasing. The whole experience can be marred if one moves too fast and makes too many assumptions that they can just use "as is" some parts they should be closely scrutinizing and possibly attended to. In such cases, rework makes what could have been a fun project turn into an irritant or even a nightmare. Minor Irritants To give you an example of an minor but irritating proble
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