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  1. #11
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    simon landlord is offline
    having problems myself on a brand new motor I gave it a oil change today and a new oil filter a fram30 all was well 50-60 psi when hot about 180 ticking over steady at 50 psi as soon as I gave the throttle a blip it dropped to zero and would not come back

    So I switched her off let her cool completely and exactly the same as soon as I touched the throttle it just went to zero do you think it’s a sticking pressure relief valve in the new oil pump any help would

    Be good before I remove the engine to strip and investigate

    Cheers

    Simon

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  3. #12
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    Simon. Try changing the filter first. Fram filters are notorious for collapsing internally. Try a moroso .. I put a Fram on a new built motor and it collapsed after about 30 seconds.

  4. #13
    "call 0-800 Apocalypse" satan's Avatar
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    And I heard a voice in the midst of the four beasts, And I looked and behold: a pale horse. And his name, that sat on him, was Death. And Hell followed with him.

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  6. #14
    Official RnS Addict Zody's Avatar
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    [QUOTE=simon landlord;336959]having problems myself on a brand new motor I gave it a oil change today and a new oil filter a fram30 all was well 50-60 psi when hot about 180 ticking over steady at 50 psi as soon as I gave the throttle a blip it dropped to zero and would not come back

    So I switched her off let her cool completely and exactly the same as soon as I touched the throttle it just went to zero do you think it’s a sticking pressure relief valve in the new oil pump any help would

    Be good before I remove the engine to strip and investigate

    Cheers

    Simon

    I have had this problem with another engine, it turned out to be the oil pick up filter being
    to close to the bottom of the sump, I was told the gap should be 3/8"...anyway done that
    and the oil pressure was sorted...
    Worth a check
    The car is open, the keys are under the dog !

  7. #15
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    Rickabilly is offline
    Hello Simon,
    I had exactly the same problem as you described with a big dollar Historic race engine in an MGB, it turned out to be the pressure relief valve sticking, in an MGB the pressure relief valve is machined directly into the engine block, it turned out that the bore in which the plunger slides had some scoring and the plunger was also badly marked, so an engine rebuild later I had honed the plunger bore and lapped the seat and all the problems went away. Incidentally the engine didn't need a rebuild as a result of the oil issues, but, all of the galleries needed a proper clean after the lapping of the valve bore and seat, and I don't refit old bearings at £20 a set for new ones, rings were only £30 a set so why not? all of a sudden I was in the middle of a major rebuild that turned into fitting a supercharger just for fun,

    anyway,

    Check the easy stuff first, filter is no 1, and don't forget the guage(they aren't as reliable as you might think), the pickup being too close to the sump is a common error but doesn't usually ever build pressure as you say your's did, some big diesels have adjustable pickups that swivel on a pipe union, I have seen one of those work lose in service and drop to the sump floor dropping the oil pressure and frying the bearings, but I doubt that this is your problem.

    Best Regards,
    Rick

  8. #16
    Stroker Kustom Jim's Avatar
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    LightbulbI'm up for an oil change soon...

    ...and I already got the fated FR*M Extra Guard PH13 on the shelf
    (slated on the previous link regards quality)

    Anyone know if this, K&N HP2002 is the correct filter for an early 350 SBC?

    HP-2002 - K&N Oil Filters, Oil Filter

    cheers
    Jimbo
    "I'm not going to take this defeatist attitude and listen to all this crap any more from all these people who have nothing except doomsday to predict."
    Carroll Shelby

  9. #17
    Exceeded sell by date Plumpcars's Avatar
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    I've used both 2002 and the 3002 on SBC.

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