lost oil pressure
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lost oil pressure

  1. #1
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    Default lost oil pressure

    ok so i lost oil pressure, the gauge was fluctuating on the river and seemed good, but went out monday and totally lost it. have a starting point at the oil pump but was wondering if anyone has had this happen? thanks

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    Default oil pressure is overrated

    Mechanical or electric gauge. What type of motor?

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    Quote Originally Posted by rallison View Post
    ok so i lost oil pressure, the gauge was fluctuating on the river and seemed good, but went out monday and totally lost it. have a starting point at the oil pump but was wondering if anyone has had this happen? thanks
    Yes, turned out to be bad sending unit on electric guage.

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  6. #4
    AKA OhOneWS6 Last Mohican's Avatar
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    Quote Originally Posted by millwrightlong View Post
    Yes, turned out to be bad sending unit on electric guage.
    Ditto.

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    Quote Originally Posted by millwrightlong View Post
    Yes, turned out to be bad sending unit on electric guage.
    Isn't always, but is usually the first place to look.
    "As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron."
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    The rest of us are being dragged along kicking and screaming.

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    Quote Originally Posted by Burnt Sticks View Post
    Mechanical or electric gauge. What type of motor?
    they are electrical. 454. but the motor wouldnt even idle?

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    You need to pull the distributor and try to spin the oil pump with a drill motor. then see if you have any pressure. Motor make will determine what you need to spin pump.

  10. #8
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    For a Chevy you'll need an oil pump priming tool to spin the pump...or if you have an old distributor laying around you can grind the gear teeth off of the gear to make your own priming tool. But a priming tool is required to spin the pump. This is because the distributor shaft has a register in it that completes the path for oil to flow to the passenger side lifters. Without a priming tool installed you'll have very little if any oil pressure at all.

    Also, the pump under normal operation spins clockwise so make sure you have your drill set to clockwise rotation.

    Aside from that, x2 on pulling the dizzy and spinning the pump with a drill. Make sure you have the ignition key turned on so that the gauge will work. By spinning the pump in this fashion, you can try it, then change the sender and/or gauge without having to spin the motor.



    Quote Originally Posted by HammerDown
    Kendall L-427 Super Blu...extreme-pressure (ep) lithium complex keeps my thrusting balls happy
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    Well I am putting in a nice stereo system in the Carrera...maybe Ill put on some rap and turn the scoop sideways

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    Senior Member jetboatperformance's Avatar
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    Unless you have a "test" guage , buy a cheap manual guage kit at Pep boys or ?? for 19 bucks ,pull your sender install the manual gauge and crank the motor , on "cranking" alone you should see 15 to 25 psi OP if you don't I'd be looking at the lower end (brgs etc )Tom

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    Default lost oil pressure thanks

    hey guys tore the motor down today and come to find out i spun a rod beaing and wasted the main bearings. thanks for all the input i really appreciated it

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