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question about mechanical gauge?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Bross82, Feb 28, 2003.

  1. Bross82

    Bross82 1/2 ton status

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    I picked up a mechanical gauge to test against my electrical one thats giving very low to now oil pressure readings. I read over the directions a few times, and found it mentioned nothing about a large "fitting" that comes out of it.

    here is what the back of the gauge looks like:
    (ignore the equal signs, if i put more than one space it condensed the text so there was only one space between characters)

    /-------------------\
    /=====()=====\ <--- where it says to connect the hex nut
    |===========| ferrule, and tubing
    |===()====()==| <--- studs to hold on some bracket
    |====__=====|
    |====/==\====| &lt;---<font color="red"> random giant hole </font>
    \====\__/====/ its roughly an inch long and
    \-------------------/ a little over 1/4" in diameter

    it says nothing about what to do with this. does this need to be connected to something, do nothing with it and leave it open, or something else????

    i am going to see what i can do about installing it tomorrow morning so i can start to figure out my oil pressure problems.

    thanks for the help,
    matt
     
  2. caryhenry

    caryhenry Registered Member

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    On the mechanical gauges I've seen, that large hole is usually for a light to backlight the gauge at night.
     
  3. Bross82

    Bross82 1/2 ton status

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    OOOOHHHHHH....... LOL.. thanks, that was stupid. i forgot about the light, since it doesnt mention it in the directions for hooking up the gauge itself. i just wanted to make sure something didnt need to be connected and have oil come spraying out that hole.

    thanks /forums/images/graemlins/laugh.gif,
    matt
     

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