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Speedometer and Tachometer 200 1978

posted by  someone claiming to be Silenceo0o0 on  Sat Apr 2 09:42 CST 2005 [RELATED]

Two questions: First off, my speedometer does not work. while researching the gears that cause this problem I found a problem, the gear that came out of mine had over 20 teeth, but the ones that i have found have only 15 or 16 teeth. What do I do? I think that the difference is because my volvo is soo old. Any ideas.
Secondly, I purchased a tachometer and put it into my cluster. However, when I went to install it, I could not find the wire. It is supposedly white with a red stripe but there is not one like that in there. There is however a white wire with a red stripe coming off of my coil and it runs through the firewall and then dissapears. There are only two wires on my coil, and I am thinking that I dont have the tach wire for some reason. Any ideas?
Thank you all very much for any help that you can give me!








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    Speedometer and Tachometer 200 1978

    uid 27's pic
    posted by  Art Benstein on  Sat Apr 2 10:14 CST 2005
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    last visit: Fri Oct 17 20:10 CST 2014
    [RELATED]

    Hi there,

    I will take your second question, as I myself have over 20 teeth, but have no clear idea of the combination of tranny drive gears with application.

    But connecting the tach is pretty easy. You will find a relay under the drivers's side dash, in the corner usually about where your left foot rests. It is usually green, but other colors are possible. The relay is your fuel pump relay, and coincidentally, the destination of that red/white wire you found.

    When you find the fuel pump relay, just extend another wire from the red/white up to the gauge terminal on your new tach.

    Best-
    --
    Art Benstein near Baltimore








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      Speedometer and Tachometer 200 1978

      posted by  someone claiming to be silenceo0o0 on  Sat Apr 2 17:45 CST 2005 [RELATED]

      Thank you very much for that advice, I will be doing it as soon as I get the chance!







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