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Fuel gauge 62

Discussion in 'Splitty Tech Clinic' started by melissa, Mar 25, 2018.

  1. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    Little Red was converted to 12V when she had her 1600 put in but there wasn't anything done (as far as I know) with the wiring and my fuel gauge is still the original 6V one but now it doesn't work. It stays at 3/4 full even when the key is removed and it gets quite warm. I think the light still works in it. So - do I need to get a new gauge? Do I need a new sender unit? Do I just need to put a new part on the original gauge?
     
    mwizz likes this.
  2. David H

    David H Well-Known Member

    Messages:
    3,311
    Location:
    newcastle
    rstucke to comment;) or PM him Melissa.
    Cheers
     
  3. Wayne murray

    Wayne murray Well-Known Member

    Messages:
    1,904
    Location:
    Seven hills
    How long ago did you convert? If you get another gauge sender etc. Do you need to look into a resistor,so your new equipment isn,t coping the full 12 volts . I know my dad converted is 64 beetle to 12v and he had a resistor on the wiper motor as it wouldn,t stop wiping when turned off. Is 6v horn loved 12 v loudest horn around.
    With his gauge he changed it to a 68 gauge ,first of the 12v and the speedo has the fuel gauge within.
    Just something for you to look into
     
    David H likes this.
  4. David H

    David H Well-Known Member

    Messages:
    3,311
    Location:
    newcastle
    Hi Melissa,
    When did it stop working? :(.
    Cheers
     
  5. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    I think it worked for a couple of months after changing the motor. I have just been putting up with it and every time I use her, I fill up before going anywhere.
     
  6. rstucke

    rstucke Well-Known Member

    Messages:
    622
    Location:
    Wamberal NSW AUS
    Melissa
    There's a company that repairs automotive gauges in Newcastle
    I'll post the contact details shortly
    I'm not familiar with splitty gauges but there are 2 common electrical types
    balanced coil type and bi-metal type, neither 6volt types would suffer 12volts for very long
    The constant voltage coil in the balanced coil type would overheat and eventually short out
    The bi metallic spring in that type of gauge would get extremely hot when the tank was full and maybe permanently bend
    I'm not sure the sender unit would be of a high enough resistance and could be damaged as well.
    you may have a voltage regulator/reducer in the gauge circuit to cope with the above and it might be faulty
    and if not there one might need to be fitted or the gauge and sender unit modified to cope with the higher voltage.
     
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  7. rstucke

    rstucke Well-Known Member

    Messages:
    622
    Location:
    Wamberal NSW AUS
    Namiis Gauge and control
    49611988
    Repair centre is at
    66b The avenue Wickham
     
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  8. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    Thanks Rick - I work close to there so I will call over one day and ask them.
     
  9. mwizz

    mwizz Member

    Messages:
    38
    Location:
    ADELAIDE
    I must have the same problem. My gauge is always showing 3/4 full but as it is not registered yet I only run it in the carport and ran out of fuel for the first time recently while it was still showing 3/4 full so this thread is helpful. It is a 69 splitty from Brazil and arrived with a 12v system.
     
  10. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    When you are driving - or the vehicle is running - does the gauge feel warm?
     
  11. Old Dubber

    Old Dubber Active Member

    Messages:
    267
    Location:
    Everton Hills, Brisbane
    Todd Wainwright and rstucke like this.
  12. 68BUS

    68BUS Well-Known Member

    Messages:
    4,225
    Location:
    Brisbane
    I had the same issue with the gauge in mine with 12 volt. I just bought a new sender amd gauge. Very happy. I got a speed hut one. Running a bay tank but the bolt holes on the plate were an exact match. You just need the depth of the tank. Less 2 inches i think they make them.

    Of course this means pulling the engine and tank. But pretty sure they do a model that can be manually calibrated so you can set it to the values your current sender gives out. Still need to connect wires to current sender but possibly done with ling nose pliers and a few skinned knuckles.
     
    David H likes this.
  13. mwizz

    mwizz Member

    Messages:
    38
    Location:
    ADELAIDE
    I haven't actually felt it but I will try that the next time I start it up and idle it for a while. Probably next weekend.
     
  14. mwizz

    mwizz Member

    Messages:
    38
    Location:
    ADELAIDE
    I ran the Kombi today Melissa. Had it idling in the car port for a while and felt the gauge but it did not feel warm at all.
     
  15. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    Mine still feels warm when the car is running. I have not had the chance to take it to the place recommended by rstucke yet but planning to do it soon.
     
  16. JasonB

    JasonB New Member

    Messages:
    18
    Location:
    Northern beaches. NSW
    Hi I hope you don't mind me chiming in, I am a instrument repairer, if the 6 volt gauge has had 12 volts through chances are you have burnt the windings in the gauge.
     
  17. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    Thanks Jason - is it repairable? or hard to say without seeing it?
     
  18. mwizz

    mwizz Member

    Messages:
    38
    Location:
    ADELAIDE
    I removed my gauge tonight to get a better look at it. Appears it is an original 12V gauge looking at the markings on the back. Industria Brasileira model. Several pics below. I did notice when I removed it that there was no wire going to what appears to be the Earth contact in the middle of the circle at the bottom.

    And yes it is a sad looking gauge - but a classic.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
    Last edited: May 28, 2018
  19. melissa

    melissa Administrator Staff Member

    Messages:
    14,406
    Location:
    Newcastle NSW
    I am not game to pull mine apart - I just took that photo without the key in the ignition, just sitting in the garage.

    fuel.jpg
     
  20. mwizz

    mwizz Member

    Messages:
    38
    Location:
    ADELAIDE
    That's interesting. When my ignition is off my gauge sits at empty and goes up to 3/4 only when the ignition is on.
     

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