Water pressure gauge?
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Water pressure gauge?

  1. #1
    Member 78Rogersrunner's Avatar
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    Default Water pressure gauge?

    So installed a water pressure gauge in my water outlet atop the engine. Took it to the lake and my gauge would work. Maybe it was the cheap gauge or it wasn't getting any pressure. Idk. But does anyone know where I could install a mechanical one on the engine so I can make sure I am getting enough to much. I don't want to run anymore wires yet for a digital gauge. This is where I had it.


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    AKA OhOneWS6 Last Mohican's Avatar
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    What is the scale on that gauge?

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    Member 78Rogersrunner's Avatar
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    0-60psi


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    AKA OhOneWS6 Last Mohican's Avatar
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    Personally I would move that gauge directly to the intake. Even if you need to pull the temp sender or something like that until you determine the pressure it is building. There may be some restriction in those adapters. Any more info on how the boat is plumbed from the pump to the dump?

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    Member 78Rogersrunner's Avatar
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    Pump. then a knob to adjust pressure. Then then a pressure relief( I believe, has a t off and line running of it to the back of the hull) then into the engine where the water pump used to be. And out the intake to back of the hull for dumping.


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    Member 78Rogersrunner's Avatar
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    Does anyone have an picture of what they use or how the have it? I'm can't find any of them on the engine inlet outlet or anywhere else.


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    Why not measure inlet pressure instead of outlet? Thats where the true measurement lies.

  10. #8
    Member 78Rogersrunner's Avatar
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    How could I do that? Any pictures of someone with that?


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    Member 78Rogersrunner's Avatar
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    We'll I picked up a new gauge this morning and gonna try just straight into the intake not off the water outlet. See how this goes.


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    As said, inlet pressure is more important. Install a T in the hose coming from the pump, install the pressure gauge there.
    1978 Glastron/Carlson CV23; 429, Berk jet.

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    Okay. I'll do that also. Anyone ever run reverse cooling on jet boats? Like in threw the thermostat housing and exits the water pump holes?


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    Water pressure inside the engine is water pressure inside the engine. It doesn't matter WHERE you tap into the system to monitor it. The configiration in the pic (out of the t stat housing) is just fine. The whole exercize of monitoring the pressure is, basically, so you don't over power the intake to head connection and water down the oil. Think automotive cooling system. They run at a maximum pressure of 12 PSI. Your boat engine uses the same gaskets (generally speaking) so it's subject to the same pressure limits. Hope that helps.
    Rob
    Last edited by White Lightning; 04-25-2014 at 06:29 AM.

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    Quote Originally Posted by 78Rogersrunner View Post
    Okay. I'll do that also. Anyone ever run reverse cooling on jet boats? Like in threw the thermostat housing and exits the water pump holes?


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    It doesn't work that way.
    Heat rises, hot water rises.
    The natural flow of water through an object, if it isn't PUMPED in a different direction, is UP. AS the water flows up it gathers heat because it has enough TIME because it is traveling in the same direction as the heat. The reason water flows DOWN through a radiator is so it flows AWAY from the natural direction of the heat that has just been eliminated from the water. Make sense? Do NOT reverse the direction of flow through your engine because it will not have time to gather the heat in the engine. Don't try and reinvent the wheel lol.
    Rob
    Last edited by White Lightning; 04-25-2014 at 06:32 AM.

  16. #14
    Senior Member Alter Ego's Avatar
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    I had three additional ports for heater hoses/sending units, Ect. I used one of those holes and installed a water psi gauge directly into the intake. Always worked for me. I need to change it out now, I'm not sure what happened to it, but it don't go to 0. It is sitting at 10 psi with no water in it lol.
    2011 Rouse Performance 19'

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