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1986 328 GTS Tach repairs

Discussion in 'Technical Q&A' started by wmnewland, Mar 3, 2004.

  1. wmnewland

    wmnewland Karting

    Aug 3, 2001
    77
    Manhattan Beach, Cal
    Full Name:
    Newland, William
    I have finally traced the problem of my Tachometer reading low to the instrument itself. What sort of recommendations do people have for a shop to send my Tachometer off to. There was one in Palo Alto, California but I can seem to find the name or address.

    Thanks
     
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  3. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    10,213
    San Antonio
    Full Name:
    Russ Turner
  4. f355spider

    f355spider F1 World Champ
    Rossa Subscribed Owner

    May 29, 2001
    17,414
    USA
    Palo Alto fixed mine last year. Forget the cost, but it was reasonable and they turned it around in two or three days. Check the archives in the old site for details. This is a very common problem on the 3.2 motor cars (328 and Mondial). Apparently there is a component on the circuit board that fails. They rebuild it and warranty it for a year.
     
  5. Mark 328

    Mark 328 Formula Junior

    Nov 6, 2003
    510
    Orange, Ca
    Full Name:
    Mark Foley
    I just had my tach fixed at Palo Alto.
    It was a $158.00 including shipping and it took about a week.
    I had the guy on the smog machine check it and he said it read slightly high (100 RPM) at 3500 RPM, but the calibration on the tach only has marks at 500 RPM increments so I would have to say it is dead-on; and it is very responsive.
    You will be very happy with Palo Alto.
    Mark
     
  6. wmnewland

    wmnewland Karting

    Aug 3, 2001
    77
    Manhattan Beach, Cal
    Full Name:
    Newland, William
    Gentlemen,

    Thank you so much for the response. I will contact them today and make ready the fixing of my Tach.

    Thanks again,

    Bill
     
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  8. peajay

    peajay Formula Junior

    Apr 17, 2002
    454
    near Paris, France
    Full Name:
    Paul
    Has anyone figured out which component on the circuit board they are changing? How about some one who is about to send off a tach take some before and after photos to see what it is that they are doing. After all, I am sure many of us could copy the fix and save lots of time and money. Knowledge is power as we say !!
     
  9. Corsa

    Corsa Karting

    Nov 1, 2003
    109
    Stockholm
    Full Name:
    Peter
    Any news on this subject?
    My tach is approx 1000 rpm off.

    Ciao
    Peter
     
  10. f355spider

    f355spider F1 World Champ
    Rossa Subscribed Owner

    May 29, 2001
    17,414
    USA
    I would just send it to a instrument specialist...it is not that expensive a fix. Around $150 here in the States.

    Dave
     
  11. Skindiver

    Skindiver Karting

    Apr 22, 2004
    203
    JHB SA.
    Full Name:
    Greg
    For some of us not in the States its a mission to send it there and all the way back again for a small fix.

    I too would be pleased if someone could say what they are replacing so that i can point my local shop in the right direction.

    Thanks
    Skin.
     
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  13. peajay

    peajay Formula Junior

    Apr 17, 2002
    454
    near Paris, France
    Full Name:
    Paul
    There must be someone on this outstanding site that knows how to fix the circuit board in these units, I don't have a problem with mine yet buy if it should happen, sending it from Europe to California would not be a great option. I do all the work on my cars myself, but electronics is something I am not able to troubleshoot, however if I know which bit goes wrong I can certainly repair it. We could all save on this job if we had knowledge of what part is replaced, and I for one would rather spend the money on fuel !!
     

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