Author Topic: Any ideas on how to revive an 83 tach?  (Read 1237 times)


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Any ideas on how to revive an 83 tach?
« on: July 23, 2007, 12:07:58 AM »
Somehow the screw that held my speedo plate on came loose and undone, and caused havoc on my tachometer.  It no longer works.  I replaced it with an 82 tach and it works, so that eliminates something outside being broken/unconnected.  I have it all taken apart and want to know if anyone has had this happen, and if there is one of the chips/resistors/caps that would be more likely to go bad.  The screw was lodged in the greenish windings on the tach part.  Thanks!



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Re: Any ideas on how to revive an 83 tach?
« Reply #1 on: July 23, 2007, 05:46:54 AM »
The greenish windings are the electro magnet that generates the "field" and moves the tach needle.  If the screw got lodged in tere, it could have nudged it a little and caused it to be out of allignment.  Also, if the screw touched anything on the circuit boards, it could have shorted something out.
I messed up two tachs trying to change the old faded faceplate with a new custom one.  They are pretty darn sensitive.


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