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    Intermittent Oil Pressure

    I swapped my ground cam from my 68 block in when I re-ringed and bearinged. Have not had the cover off since. A crack would make sense. I can't make sense of problems with clogging in the gallery or bearings causing intermittent problems. Vortexing some air into the inlet through a crack...
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    Intermittent Oil Pressure

    I plastiguaged mains and rods when I was building. They were on the loose end of tolerance, bit still in tolerance. A sticky relief would be consistent with what I see. A big part of the reason I threw a new pump at it was just in case it was sticking. It has low pressure hot or cold. I...
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    Intermittent Oil Pressure

    I had checked the bypass in the old pump before replacement. It seemed to be free to move and spring was fine. I have not checked the new one.
  4. G

    Intermittent Oil Pressure

    Also, I have tried multiple oil filters.
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    Intermittent Oil Pressure

    Mechanical gauge, pressure switch, and engine knocking all agree! Yes, yes and yes! This is where it gets a bit weird. Cam is from a 68, and has the wider oil lands and block has narrower 75(?) and up bearings. I couldn't see that this would create a problem. Maybe someone else has some...
  6. G

    Intermittent Oil Pressure

    Hi all, New to the forum. Looking for help on my 68 Valiant. It has intermittent Oil Pressure. The motor I have in it is a ~76 bottom end, with a 68 head. It also has the 68 camshaft in it. Before I put it in, I put new bearings and rings in it. After I put it in, I had good oil pressure...
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