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Thread: no oil pressurre

  1. #1

    no oil pressurre

    BLOWN SMALL BLOCK CHEVY, NO OIL PRESSURE WHEN IT GETS WARMED UP. PUMP IS GOOD. NO SPUN BERINGS. ROD CLEARANCE IS GOOD. BLOCK IS GOOD AND CRANK IS GOOD ALL THIS HAS BEEN CHECKED, I HAVE OIL PRESSURE WHEN THE MOTOR IS COLD BUT WHEN IT GETS TO RUNNING TEMP THE OIL PRESSURE GETS VERY LOW (ABOUT 5 LBS) THE PUMP IS A NEW HI VOLUME PUMP AND WORKS PERFECT. THE GUAGE IS THE FIRST THING I TRIED CHANGING THEN THE OIL AND FILTER NOW I AM INTO THE MOTOR AND CAN'T FIND ANYTHING WRONG. ANY SUGGESTIONS WOULD BE GREATLY APPERICATED...BAM

  2. #2
    Member JUNIOR BUILDER
    Join Date
    Oct 2005
    Location
    ohio
    Posts
    94
    is the front oil gaaley plugs installed? also the one under rear main cap

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    May 2006
    Posts
    2,044
    Is this a new motor? or did the problem just suddenly appear? I would have tried another filter first before I torn into but it's alittle late now. Excessive clearances could be the culprit too, plastigauge the rod and mains and see what kinda clearances you have, also worn cam bearings will do the same.
    ***IN GOD WE TRUST***

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Dec 2005
    Location
    Rutherfordton North Carolina
    Posts
    192
    Take the pump off and with a rubber tipped air gun blow air into the oil galley in the main,you should be able to see the problem.Bill
    Hendrens Racing Engines
    1310 U.S. Hwy 221 North
    Rutherfordton N.C. 28139
    828-286-0780 Bill, Steve, Mike
    www.hendrensracingengines.com


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