OER Temp Gauge Woes

Discussion in 'Electrical Systems' started by 1974TypeLT, Oct 19, 2017.

  1. 1974TypeLT

    1974TypeLT Veteran Member

    688
    1
    Mar 19, 1999
    NW, FL USA
    Does anyone besides OER make stock replacement engine temp gauges, as I have had problems with theirs misreading?
     
  2. Twisted_Metal

    Twisted_Metal Moderator Staff Member Lifetime Gold Member

    25,270
    286
    Feb 26, 2004
    Bloomington, MN
    It may be the sending unit.
    The gauge and sending unit need to be calibrated to each other.
    (The temp gauge is just an Ohm Meter with a face markings calibrated to correspond to the temperature experienced by the thermistor in the sending unit.)
     
    FlaJunkie likes this.
  3. 1974TypeLT

    1974TypeLT Veteran Member

    688
    1
    Mar 19, 1999
    NW, FL USA
    Thanks for the reply and reminder. I had forgotten when over a decade ago had to use an in-line resistor to compensate
     
  4. 1974TypeLT

    1974TypeLT Veteran Member

    688
    1
    Mar 19, 1999
    NW, FL USA
    I contacted Classic Ind and they said their TU49 temp sensor is specific for the OER #6489856 engine temp gauge. I hope they are right, so I can avoid resistor recalibration
     

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