Volvo RWD 120-130 Forum

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Tach hook-up. 120-130

posted by  walrus3 on  Sat Oct 22 11:11 CST 2005
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last visit: Mon Dec 2 14:20 CST 2013
[RELATED]

- goes to ground
+ goes to 12volts
G goes to points.
Not all used tachs work.
I've heard that many can be helped with a tiny soldering iron resoldering
the internal connections, but I haven't tried yet.
A common malfunction is to show about 1000 rpm as soon as power is applied
and maybe to read about 1000 rpm high throughout the range.
Mine does this intermittently, more than half the time. Sometimes it works
right.
--
George Downs Bartlesville, Heart of the USA!






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New Tach hook-up. [120-130]
posted by  pearl  on Sat Oct 22 10:39 CST 2005 >


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