Oil Pressure Trouble

Discussion in 'Technical' started by Bioinfomatic, May 20, 2008.

  1. Bioinfomatic

    Bioinfomatic Member

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    In my 250 engine, I've notice that once the engine has warmed up and after I drive it a while, once I come to a stop it the pressure will drop to 20 psi, and then slowly climb back up to 40psi, But while driving it stays at 40 psi. whats could be going on?
     
    Bioinfomatic, May 20, 2008
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  2. newtoford

    newtoford Member

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    i think the psi is supposed to drop when you stop since the pump isnt turning as fast at a low RPM. 40 does seem a little on the low end i think, i could be wrong but i think 50-60 is normal
     
    newtoford, May 20, 2008
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  3. 71gold

    71gold Frank Cooper Supporting Member

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    is the ...oil level...correct?
    how many miles on the motor?
    what grade oil do you have in it?

    ...:huh:...
     
    71gold, May 20, 2008
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  4. Scotty P

    Scotty P Member

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    40 is not on the low end. Rule of thumb is 10#/1000 RPM.
     
    Scotty P, May 20, 2008
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  5. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    20 Psi at idle hot for an old 200? 250?? is pretty good actually.How many miles are on it??
    Technically you only need 8 PSI at idle.Like scotty said 10 psi for every 1000 rpm.
    Beam me up!!!
     
    Mavman72, May 20, 2008
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  6. PART-TIME

    PART-TIME Member

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    My 302 (hot) runs about 15 to 20 at idle and 70 at highway speeds. This is normal pressures.



    You could have a defective oil pressure gauge.
     
    PART-TIME, May 20, 2008
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  7. Bioinfomatic

    Bioinfomatic Member

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    Well the motor has 54,000 original miles on the clock.
     
    Bioinfomatic, May 21, 2008
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