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308 Speedo Repair/Rebuild

Discussion in '308/328' started by alhbln, Aug 22, 2013.

  1. alhbln

    alhbln Formula 3
    Owner Consultant

    Mar 4, 2008
    1,656
    Berlin, Germany
    Full Name:
    Adrian
    The type number 61.XXX is sufficient to identify the board, it is a Type 2 speedo.

    I have finished the Type 2 circuit board but did not find a good solution for the calibration process yet. The factory process for the type 2/3 Speedo was to send a specific speed signal to the Speedo and then install the Speedo needle in the correct position with a machine. Calibration on my PCB does the same, it creates a predefined speed signal but you would need a special tool or trained hands to properly install the needle then.
     
    G. Pepper likes this.
  2. 4valves

    4valves Rookie

    Aug 29, 2012
    9
    Do you think that will be always in this way or will be possible to find different solution? Other solution could be to send you a speedo ( I think you are in Germany correct ) and you change card and set it ? Do you have additional solutions?
    Is it possible to repair my card, I mean the chip installed is available or like SAY 115 parts?
    Thanks again
     
  3. alhbln

    alhbln Formula 3
    Owner Consultant

    Mar 4, 2008
    1,656
    Berlin, Germany
    Full Name:
    Adrian
    I'm thinking about either changing the electronics to further calibrate a previously installed needle or if its possible to 3d print/mill a small guide for installing the needle. Type 2 Speedo PCBs have a different chip, these use a RCA 929xx type which is not available anymore unfortunately.
     
  4. 4valves

    4valves Rookie

    Aug 29, 2012
    9
    So at moment, we can't use for type 2 your great work!
    Do we have to wait till you will find different electronics ?
    Send speedo to you, for card exchange and setting, is not feasible?
    Thanks
     

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