Tachometer question

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Tachometer question

04-20-2011, 10:09 PM

Bob338

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Join Date: Feb 2011

Location: Redding, California

Posts: 240

Tachometer question

Can somebody tell me what modulates the advance of the needle on the analog tachometers in our instrument clusters?

I want to replace my tach which indicates 0-6000, with one whose face indicates 0-7000. If I replace the face of the replacement tach with the old face which indicates 0-6000 r's, will it be accurate? Or, if I leave the 0-7000 face on the replacement, will it be accurate? The arc of the tach is the same on both faces, the difference being that the unit marks are closer together.

Please, knowledge, not speculation.

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