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77 wiring...tach

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Old May 9, 2005 | 10:50 PM
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Default 77 wiring...tach

well, i bought all new digital gauges and was curious if i can just tap into the old tach wire for my new tach...... i don't want to fry anything if there is a voltage issue...

b
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Old May 10, 2005 | 09:07 AM
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Originally Posted by onaqwst
well, i bought all new digital gauges and was curious if i can just tap into the old tach wire for my new tach...... i don't want to fry anything if there is a voltage issue...

b

don't know for sure.....but i have never seen an electric tach that didn't work off of pulses/signals from the coil.....why not ask the tach manufacture for a wiring diagram?
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Old May 10, 2005 | 11:30 AM
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good thought.... i went to the website and found the diagram.... connect to negative terminal on coil, ground, and a power/ignition..... seems fairly simple

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