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adding non factory tach

Fellro

Moderator
Staff member
It would require a sensor threaded into the injection pump housing, and then the dash tach. For aftermarket, they generally read off of the alternator.
 

Fellro

Moderator
Staff member
It hooks into the wiring I think. Never done one, but it reads the pulses from the alternator, and somehow you calibrate it to the rpm.
 

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