Mechanical temp gauge on 90 22re

Discussion in 'Engine/Drivetrain' started by Jim Thompson, Jun 4, 2023.

  1. Jim Thompson

    Jim Thompson Member

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    Hi, me and my son are putting a 22re in his 74 pickup, the engine is out of a 90 pickup, what adapter will I need to install the sending unit in the same place I'm removing the original sending unit? I haven't bought the temp gauge yet, just want to have everything I need before I try and install it ....any help is appreciated
     
  2. jetas

    jetas Grand Toyotaholic

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    You may need a T fitting to fit a second sensor
     
  3. Pearce

    Pearce Toyotaholic

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    Anything that is 3/8" will be Japanese spec but anything 1/2" will be npt. You might have a port you can use.
     
  4. Jim Thompson

    Jim Thompson Member

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    I'm not using the original sender that was electronic , should be able to adapt to that outlet, just not sure what thread it is,
     
  5. Jim Thompson

    Jim Thompson Member

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    Is there an adapter I can get for the Japanese size?
     
  6. Pearce

    Pearce Toyotaholic

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    Depends on the size of the probe. With an adapter you step it down some. So if it's only a little smaller then the threads it will not fit. The British standard will work thought and easy to find.
     
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  7. fred heath

    fred heath Addict

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    Most early Toyota thread has a 1.25 pitch.
    So either M8x1.25 or M10x1.25. Depending if it’s a nominal 5/16 or 3/8.
     
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