General Discussion > Q & A

Tachometer calibrating

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mrbuick65:
Hello Everyone. Does anyone know if the tach in a 65 GS can be calibrated? Mine is reading about 1800 when actually should be 2100.  Is reading zero when stopped.   
Thanks, John

Loren At 65GS:
Yes, the tachometer has an adjustment. It is on the back of the housing that the tach is in. There should be a round sticker dot. Remove the dot and there is a potentiometer with a screwdriver slot for adjustment.

 Loren

telriv:
John,

Your best bet would be to send it out & have it updated to modern internals for best & most accurate readings.
Otherwise it will end up driving you nuts & IF your not careful could cost your much more to repair a fried component.
Just my thoughts.

Tom T.

mrbuick65:
Hey Loren and Tom. Appreciate your input. Not sure what to do yet.
Thanks so much, John

GS66:
 I have one that doesn?t go all the way back to zero so it starts out at 300 and reads that amount over.

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