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My Tach is off by 800rpm or so... fix for this?

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Old 03-29-04, 09:19 PM
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Unhappy My Tach is off by 800rpm or so... fix for this?

RX-7 store told me that my tach is off by 800rpm or so when compared with the readings from Microtech... they said I might need regrounding or replace the whole gauge cluster. What are the ways to fix this? Will installing an aftermarket tach solve the problem? Or should I just look for a used gauge cluster? Thanks in advance...
Old 03-29-04, 09:21 PM
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there was a thread about when the buzzer goes off. It had a thing that calibrated the tach. Was about a week ago, not sure where its at now though...
Old 03-29-04, 09:45 PM
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There's a screw which you can adjust to "fix" this.


-Ted
Old 03-29-04, 09:47 PM
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Do you happen to know where that screw is?? Thanks a lot for your help, Ted
Old 03-29-04, 09:59 PM
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Sorry I did this once, and that was a long time ago!

I think there's a thread on this somewhere - it might be in the archive section?


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Old 03-29-04, 10:30 PM
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Found it...

https://www.rx7club.com/showthread.p...hreadid=285724

Adjust the plastic screw...


-Ted
Old 03-29-04, 10:35 PM
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Thanks a lot, Ted!!!
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