My G27 should not be landfill

Discussion in 'Sim Racing Hardware' started by skidmark33, Mar 21, 2016.

  1. skidmark33

    skidmark33

    Messages:
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    +22
    The potentiometers on my G27 have had it.

    I've cleaned them more than once, I've swapped the rarely used clutch with the brake, I've done all the maintenance I can.

    It's over.:( (my throttle spikes and won't stay much above an average value of 80% - I'm getting blown away on the straights...)

    Can anyone help me find new potentiometers that fit and will do the job? Any advice?

    Logitech have been no help at all. (Some corporate legalese about not encouraging us to open up the pedal housing is all you get).

    My G27 is a great wheel. It doesn't deserve to become landfill because one easily replaceable four year old part is worn out.

    Help????
     
  2. Cloudini5

    Cloudini5

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    • Like Like x 1
  3. skidmark33

    skidmark33

    Messages:
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    Logitech are no help at all.:mad:

    Thanks for the thread link.:thumbsup:
     
  4. eSEA One

    eSEA One
    eSEA One

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    I replaced my pots with Hall Affect Sensors (HAS) Link to Leobodnar ones I got mine locally
    You have to do a bit of DIY to make brackets, I made mine out of old plastic credit card like cards and hot glue.
    I also made a C shape bracket glued on the original pedal gear arm that the pot gear used to which I glued some small magnets so that they move around the HAS which is connected to the pot wiring. I originally had only one magnet but found out that I was only using half the range of the HAS. a bit of trial and error enginering needed to get the full range as far as distance and magnet polarity. This set-up might not be the best, I have seen round magnets with a hole in them (mounted on the gear shaft) that rotate around the HAS this is what I did at the time. The signal in my configuration is non linear fairly fast at the start of the pressing of the peddle quite sensitive in the middle and then fast in the end to the fully pressed position.
    Hall AS.jpg
    The pedal wiring is then connected directly to the PC via the Leo Bodnar Cable adapter
     
  5. GetGud

    GetGud

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    Im currently requiring to replace my pots for my logitech g920. tried cleaning it but it doesnt work coz the conductive carbon paint in the paint is scratched out. finding genuine pot is impossible.

    thank you for your diagram. i might want to try this. Can i ask why did you use pedal wiring directly to pc? will it not work with the pedal connected to the wheel?
     
  6. skidmark33

    skidmark33

    Messages:
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    +22
    Great to see this thread I started in March 2016 come to life again...

    My G27 is still going strong - I tried pulling my potentiometers (pots) apart and cleaning them but that took hours and only helped for a month or so.

    Then I tried this:

    [​IMG]

    A quick spray inside each pot and they have worked perfectly ever since (now two years!!). No need to open them up - just put the nozzle in.

    Disclaimer: I do not have any interest in any company that makes or sells this stuff. It just fixed my pots and saved my G27 from the scrapheap, so I am happy to recommend it.
    And I'm sure any similar product would be just as good.

    From the sounds of it, the spray may not work for you if the conductive surfaces are scratched? May still be worth a try though.
     
  7. eSEA One

    eSEA One
    eSEA One

    Messages:
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    Ratings:
    +211
    I believe that the Hall Effect Sensors need amplification and the Leo Bodnar cable has this built in. I had not tried it without the cable. But my logic tells me the Logitec wheel that the original pots plug into are setup for the signal from the pots on the pedals and not Hall Effect Sensors
    By the way the Leo Bodnar cable will improve the resolution from the original pots (well that's if they are still in a working state.
     
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