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Normal oil pressure?

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Old Jun 14, 2010 | 04:05 PM
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charleswood6969's Avatar
charleswood6969
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From: Des Moines
Normal oil pressure?

Got a quick question I haven't been able to find an answer to in the book....
What is normal oil pressure at idle and/or at operating speed?
Mine is running about 20-25 psi at idle, depending on temperature and oil condition (dirty/sooty oil equals harder to pump) Seems to run about 40-45 psi at highway speed.
Normal, or getting too much slop in the bearings to make better pressure?
 
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Old Jun 14, 2010 | 09:24 PM
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Mine only has about 140,000 miles on it, and 35 psi is all I can muster. But it makes no abnormal noises and runs good, so I am not worried about it. If we had kept the factory gauge hooked up, then we are both good according to that correct? Remember it runs half-way unless you drop below 5 psi.
 
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Old Jun 14, 2010 | 09:40 PM
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Festus Hagen
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What motor??

The Diesel should be 40-60 lbs at operating RPM.

-Enjoy
fh : )_~
 
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Old Jun 14, 2010 | 09:42 PM
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charleswood6969
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From: Des Moines
Festus, I am an airhead....Sorry....I have the 6.9 1983
 
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Old Jun 14, 2010 | 10:11 PM
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Oil pressures.....

Hot idle....... 10 psi

3300 rpm.........40-70

Our engines pump 12 gallons per minute, flow is important pressure is secondary.
 
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