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setting up alternator sensored tachometer

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Old 08-20-2010, 02:13 PM
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Default setting up alternator sensored tachometer
i just installed a Autometer tach with the sensor on the alternator and was wondering if there is a way to set these up at home or is it just a "get it close" kind of thing.
 
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Old 09-07-2010, 01:23 PM
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no one has experience with these things?
 
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Old 09-07-2010, 04:03 PM
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I personally don't understand how an alternator knows how many revolution's an engine is making
 
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Old 09-07-2010, 04:08 PM
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you know by the pulley size. every accessory spins at a certain percent of engine rpm. i used to have the formula handy when i set up my air compressor (not on the truck) so i wasn't overspinning the pump.
 
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