What Is The Purpose Of This Wire | FerrariChat

What Is The Purpose Of This Wire

Discussion in '308/328' started by Lawrence Coppari, Nov 8, 2020.

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  1. Lawrence Coppari

    Lawrence Coppari Formula 3

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    This is the rear of the speedometer of my '87 328 GTS. There is a connector that has what appears to be a metallic shielding. What is its purpose?

    I'm going to be sending the unit off to be repaired. How do I disconnect the shielded connector?
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    Lawrence Coppari, Nov 8, 2020
    #1
  2. mike32

    mike32 F1 Veteran

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    The wiring diagram for the 3.2 mondial shows 4 wires to the speedo, black, green strip white, yellow, red strip black
    If thats any help, that looks like it is brown which is not listed
     
    mike32, Nov 8, 2020
    #2
  3. GordonC

    GordonC F1 Rookie Owner Rossa Subscribed

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    That's your trip odometer reset cable. It can't be disconnected from the back of the speedometer - you have to unscrew the thin nut holding the trip odometer reset knob to the instrument panel from the front side (at the base of the knob), then push the knob through the instrument panel.

    The reset cable with the knob remains attached to the speedometer when you send it off.

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    Last edited: Nov 8, 2020
    GordonC, Nov 8, 2020
    #3
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  4. Lawrence Coppari

    Lawrence Coppari Formula 3

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    Thank you GordonC.
     
    Lawrence Coppari, Nov 8, 2020
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  5. miketuason

    miketuason F1 World Champ Owner Silver Subscribed

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    Is there a way to attach that to the odometer? :D
     
    miketuason, Nov 8, 2020
    #5
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  6. Brian Harper

    Brian Harper F1 Rookie Owner Silver Subscribed

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    There must be. I don't know how to do it, but I do know there have been a whole lot of 35,000 mile 308s for sale for the last 15 years.
     
    Brian Harper, Nov 8, 2020
    #6
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  7. mwr4440

    mwr4440 Five Time F1 World Champ Rossa Subscribed

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    Those cables do come off the unit, but no real reason to do so.
     
    mwr4440, Nov 12, 2020
    #7
  8. Lawrence Coppari

    Lawrence Coppari Formula 3

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    I sent the speedometer/pulse generator off to Palo Alto Speedometer this morning. Hope all goes well there.
     
    Lawrence Coppari, Nov 12, 2020
    #8
  9. david bentley

    david bentley Karting

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    Polo Alto has always done good work for me
     
    david bentley, Nov 12, 2020
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