Ok, I've replaced the water pump and rear heater core in my young 91 2.1
automatic tin top.  While I was there, I did some "you might as wells".
Changed all the fuel lines and removed the plastic fire wall fitting.
Replaced the O-ring on the breather tower.  The old one was so hard and
brittle it came out in pieces.  And, finally installed an oil pressure
gauge.  Next week, lube oil analysis.

What I got was 70 lb. pressure at cold idle.  It is fairly cold here so the
best I can do is 190 degree oil temperature.  At that temperature I have 18
lb. at idle and 45 lb. above 3000 rpm.  Close to 50 lb. cruising at 4150
rpm.

What I don't know is this good, bad, or average?  I've been running Mobil 1
15w-50 oil and this engine just turned 250K miles.

BobC