[Question] Install oil pressure sending unit and oil pressure safety switch
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Install oil pressure sending unit and oil pressure safety switch

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    Default Install oil pressure sending unit and oil pressure safety switch

    I am wanting to install an oil pressure safety switch for my fuel pump on my 454 BBC. How do I go about doing this? Do I use a T fitting and screw them both into the same port? Thanks for the help. If anyone has pictures that would be a huge help.

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    Default Vega switch

    Quote Originally Posted by haines21 View Post
    I am wanting to install an oil pressure safety switch for my fuel pump on my 454 BBC. How do I go about doing this? Do I use a T fitting and screw them both into the same port? Thanks for the help. If anyone has pictures that would be a huge help.
    Years ago we used Chevy Vega oil sending units w/3 prongs. One to the gauge/light, and the other two was 12V coming and going to the pump. The Vega did have some sort of over ride for pressurizing the system during start up... Maybe off the "start" of the solenoid, not sure, it was about 100 years ago... I know the roundy round guys used them as approved safety switches in case of roll overs...
    Ray
    LOUD BOATS SAVE LIVES

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    Quote Originally Posted by Moneypit View Post
    Years ago we used Chevy Vega oil sending units w/3 prongs. One to the gauge/light, and the other two was 12V coming and going to the pump. The Vega did have some sort of over ride for pressurizing the system during start up... Maybe off the "start" of the solenoid, not sure, it was about 100 years ago... I know the roundy round guys used them as approved safety switches in case of roll overs...
    Ray
    Thanks for the info. Starting to wonder if I even need to worry about having the switch. Initially I thought it was for human safety not machine safety.

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    Some guy obnoxious001's Avatar
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    Default

    Quote Originally Posted by haines21 View Post
    I am wanting to install an oil pressure safety switch for my fuel pump on my 454 BBC. How do I go about doing this? Do I use a T fitting and screw them both into the same port? Thanks for the help. If anyone has pictures that would be a huge help.
    Depending on your block, some 454 blocks have two separate ports above the oil filter mount, and several others along the pan rail that could all be used for a pressure switch, rather than having to use a tee.

  7. #5
    kenny nunez
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    Default Pressure switchh the

    One main reason for the switch is in case of a "flooding over" situation with the carberator or an accident where the fuel pump keeps running. I used that very switch to set up some marine engines when I had my repair shop. Also when the location to mount it is tight I would mount it remotely with a stainless hydraulic hose to keep the ground circuit.

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