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Old 02-17-2003, 10:13 PM   #1
mudman
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tach differences

Does anyone know if there is any difference in 6 & 8 cylinder original tachs? Someone told me once that you can make them work on either.
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Old 02-17-2003, 11:27 PM   #2
jeffbo
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I don't know about your tach question, but it's good to see another South Dakota member on the board. There's not a whole lot of us. Just wanted to say hi and welcome to the board.
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Old 02-17-2003, 11:29 PM   #3
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jeffbo, I see your from watertown. I was there a couple of years ago at the terex plant for some training.
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Old 02-18-2003, 12:12 AM   #4
too much stuff
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6 or 8

As far as i know they are not interchangeable. The readings will be inaccurate. If there is a way to change them over, i am not aware of it.
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Old 02-18-2003, 02:23 PM   #5
JimKshortstep4x4
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Talking

The 6 cylinder tachs can be calibrated to work on 8 cylinder engines. If you look on the back, there is a taped up hole for calibration. Just hook the tach to an engine along with a known tach for comparison and adjust it at various rpm's.

Jim
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Old 02-21-2003, 01:52 PM   #6
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This hole.
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Old 02-21-2003, 02:01 PM   #7
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That's it!

Nice pic.

Jim
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