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Old 09-20-2019, 12:08 PM
amizerin amizerin is offline
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Quote:
Originally Posted by ndutton View Post
It depends on the gauge. The typical gas engine tachometer such as you'll find with Moyer gets 12VDC + and - plus a wire to the '-' terminal on the coil.

Another style of gauge (diesel style, I have one) gets 12VDC + and - plus a signal from the alternator. Unless your alternator already has an AC tap for this purpose I would avoid this type of tach. It also requires calibration because of different pulley ratios on different engines. In other words, much more hassle.
Thank you! I believe any tachometer suitable for 4 cylinder engine will work?
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