mc1 200tqa oil pressure problem?

[Beatty, Robert]

>Just a couple of comments: Depending on the oil used to rebuild the motor,
it could be normal except for the sensor. Or the pick >up screen could be
partially plugged by varnish.
Motor wasnt rebuilt, it was pulled running from another vehicle.  I have to
check with who sold me the motor, but as far as I know, just the top end of
this motor was rebuilt and has less than 10k on the rebuilt head.  The
screen being clogged sounds like a good idea to check though as the motor
has been sitting for most of last year while I goofed off instead of getting
it installed.
>I think there are two sensors: one below 1.x bar and the other for above
3.x bar. I suspect his sender, or its wiring. There are many schools of
thought in oil................... 
There are 2 sensors in the sending unit at approx the values you stated.
Troubleshot wiring and verified its working correctly.  Swapped sensor from
a 91 200 in the junkyard I picked up a week or so ago, same problem.  I was
going to borrow the sensor from my 86 5ktq just to make sure I was using a
good unit.
>Thin oil is (and was in my rebuilt 200 20V avant) used for initial start up
to make sure it flows to every nook and cranny. I saw >1 bar at idle and 3
bar max. I didn't dare go over 4000 RPM. I changed that oil and the Mann OEM
filter out for another Mann >OEM and 10/40W oil and I had 5 bar at highway
speeds and 2-3 bar at idle. Interestingly, Porsches have a 1bar per 1000 RPM
guideline to watch for on their huge dials and gauges 
>HTH - Scott by BOSTON 
I filled the motor with quaker state 10W-40, so its not that.
Any other thoughts?

Rob Beatty