Speedo Sending Unit Replacement | FerrariChat

Speedo Sending Unit Replacement

Discussion in '308/328' started by George Vosburgh, Jun 9, 2017.

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  1. George Vosburgh

    George Vosburgh F1 Rookie
    Silver Subscribed

    Hello Folks, In changing the sending unit is it best to do it from the top of the engine or from the bottom? Thoughts?
    Thanks, G
     
  2. waymar

    waymar Formula 3

    Sep 2, 2008
    1,354
    Northeast, PA - USA
    Full Name:
    Wayne Martin
    My 1982 is best from rr wheel-well.
     
  3. George Vosburgh

    George Vosburgh F1 Rookie
    Silver Subscribed

    That sounds good, thank you!
     
  4. johnny308

    johnny308 Karting

    Dec 3, 2011
    151
    Greenfield, MA. USA
    On the later cars with the brass colored sender It is simply done with the right wheel removed. The largest socket I have is 1-1/4 inch. Fits perfectly.
     
  5. johnny308

    johnny308 Karting

    Dec 3, 2011
    151
    Greenfield, MA. USA
    Please what is the best source for a new one?
     
  6. John M

    John M Formula Junior

    Nov 18, 2004
    887
    Kentucky
    Be sure to bench test the new sensor and insure the wires are installed into their correct position in the connector. I bought an old style one from Superformance that I found had the wires reversed. And as others have noted passenger side rear wheel well to install.
     
  7. johnny308

    johnny308 Karting

    Dec 3, 2011
    151
    Greenfield, MA. USA
    Wheel well .....correct. I was thinking the opinion was to remove the inner wheel well.

    That does not seem to be necessary.

    Cheers
     

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