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oil pressure fluctuations

To: "mgs" <>
Subject: oil pressure fluctuations
From: "DenverD" <>
Date: Fri, 29 Jun 2001 18:17:52 +0200
cruising at 2000 RPM, 4th gear + overdrive..
before the oil is warmed good the oil pressure is 60+ PSI and 
as it heats it drops to about 45 or so...
and usually stays steady..
but sometimes, (and i can't pin it to anything--like going up or 
down a hill, around a curve etc) the oil pressure fluctuates from 
40 to 60 back and forth, back and forth....maybe taking a second 
and a half from 40 to 60 and back to 40..

the needle swings smoothly up and back..

it may do that for a minute or two and then smooth out again at 
about 45..

the dip stick shows oil right up to the full mark..


what should a "good" '71 engine have for PSI at 2000 RPM, 72 degree 
day, 5w40 synthetic oil? (i STILL have not received my books 
ordered 8 weeks ago)

DenverD - A Texan in Denmark
65B # GHN3L/33680; engine 18V581-H193 

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