Replacement of Water Temp Gauge - 308 | FerrariChat
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Replacement of Water Temp Gauge - 308

Discussion in '308/328' started by dpardyferrari, Jun 27, 2007.

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  1. dpardyferrari

    dpardyferrari Karting

    Aug 7, 2002
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    Brunswick Maine
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    Darrell Pardy
    #1 dpardyferrari, Jun 27, 2007
    Hi Folks:

    I have a faulty water temp gauge in my 1984 308GTSI that I need to replace. I thought I would also replace the lights in my dashboard at the same time. Any suggestions on how to get started with the disasembly? PS - I already have the gauge and lights.
     
  2. BigTex

    BigTex Seven Time F1 World Champ
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    #2 BigTex, Jun 27, 2007
    Check ash13's "clock" thread below I think there's a link, she means speedo....

    The screws for the instrument plate are behind the dash lights...

    Or is your temp gauge in the console?
     
  3. BigTex

    BigTex Seven Time F1 World Champ
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    #3 BigTex, Jun 27, 2007
    Use the 'search' feature for the upgraded dash light bulb numbers.......
     
  4. dpardyferrari

    dpardyferrari Karting

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    Darrell Pardy
    #4 dpardyferrari, Jun 27, 2007
    Sorry..as soon as I posted this I saw the other threads. Thanks for the re-direct and sorry for the clutter - Darrell
     
  5. BigTex

    BigTex Seven Time F1 World Champ
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    #5 BigTex, Jun 27, 2007
    No worries....not the first time!

    As you see in my comments to ash13, watch the plate edges against the vinyl........

    Good Luck!!
     
  6. M.James

    M.James F1 Rookie

    Jun 6, 2003
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    Michael.C.James
    #6 M.James, Jun 27, 2007
    What is the motivation for replacing the water-temp gauge, and not the sending unit?
     
  7. dpardyferrari

    dpardyferrari Karting

    Aug 7, 2002
    115
    Brunswick Maine
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    Darrell Pardy
    #7 dpardyferrari, Jun 27, 2007
    The temperature gauge has been acting up for a while now (needle showing higher or lower than actual temperatures) and I can usually fix it by tapping the gauge itself. So...I assumed it was not the sending unit. I am getting tired though of tapping the damn gauge.

    Have I mis-diagnosed the problem?
     
  8. Crallscars

    Crallscars F1 Rookie

    Jun 7, 2006
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    Douglas Crall
    #8 Crallscars, Jun 27, 2007
    your finger sounds like a valuable tool !
     
  9. M.James

    M.James F1 Rookie

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    #9 M.James, Jun 27, 2007
    If your finger fixes the gauge, every time, then nope- you got it. I was wondering if you took some actual temp readings somewhere and matched them to the gauge first...
     
  10. dpardyferrari

    dpardyferrari Karting

    Aug 7, 2002
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    Darrell Pardy
    #10 dpardyferrari, Jun 29, 2007
    Yep...done that as well. I will however see if the gauge has good clean contact points, but since I have virtually rebuilt this car I guess its time for this part to go.
     
  11. BigTex

    BigTex Seven Time F1 World Champ
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    #11 BigTex, Jun 29, 2007
    LOL!

    Yep the electronics are troublesome...good luck!
     
  12. M.James

    M.James F1 Rookie

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    #12 M.James, Jun 29, 2007
    BTW, I haven't done the research, but WHERE is the sensor for the gauge? Where else (besides the radiator) is a good reading possible, with say an infrared device?
     
  13. Badman

    Badman Formula 3

    Mar 4, 2007
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    Bruce Wayne
    #13 Badman, Jun 29, 2007
    I usually see them in the thermostat housing, but have to admit I don't know for sure on the 308. There's an electrical connector at the bottom of the expansion tank, which may be it. But that would be a silly place to put it, IMHO.

    Do you have an infrared temp gun? If not, I can bring one on Sunday.
     
  14. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #14 Steve Magnusson, Jun 29, 2007
    The 308 water temp sensor is mounted in the (cast metal) Y-crossover pipe that runs between the two cyl. heads (i.e., where the hot coolant comes "out" of the engine).
     
  15. PT 328

    PT 328 F1 Rookie
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    #15 PT 328, Jun 30, 2007
    Mine was reading incorrectly as well. Prior to replacing the gauge I cleaned the contacts on the back and all was good. Try that first.

    Dan
     

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