1/2 npt temperature switch for electric fan

Discussion in 'Diesel Tech and 24 volts Systems' started by js.larocque, May 27, 2010.

  1. js.larocque

    js.larocque

    Joined:
    May 16, 2008
    Messages:
    5
    Location:
    Montreal , Canada
    Hi, I am searching for a 1/2 npt coolant temperature switch to activate relays for my contour electric fan. I am planning to install the switch on the water outlet where there is a 1/2 npt square plug , just under the mecanical thermostat, next to the temperature sending unit.

    Anyone knows of a car model that would share the same thread for the switch and similar temperature?

    I am running a 189F(88C) thermostat and I was planning to instal a 210 on , 190 off switch or something similar. Is 210 on too high?

    I know there are some kits on ebay with the right thread and adjustable temperature but I don't want to go with this option. I live in canada, shipping from ebay usualy takes 2-3 weeks and I think I can do something cheaper and more reliable, no need for adjustment, simple. All I need to do is find the right switch.
     
  2. js.larocque

    js.larocque

    Joined:
    May 16, 2008
    Messages:
    5
    Location:
    Montreal , Canada
    Forgot to mention this is for a BJ70 with a 3B
     
  3. rchalmers3

    rchalmers3

    Joined:
    Jun 29, 2007
    Messages:
    1,540
    Location:
    Playas de Nosara, Nicoya Peninsula, Costa Rica
    I believe you can find the switch you are looking for with either a 1/4" or 3/8"MPT. Then it is a simple matter to obtain a reducer bushing to adapt your chosen switch.

    rick
     

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