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Old 03-23-2023, 04:56 PM   #2
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
Default Re: speedometer rebuild

I forget. Which way does the adjustment go on the hair spring to make the speedo read slower? Mine is about 5 mph fast. I think it goes to make the spring shorter, away from the fixed point. I test the speedos with a drill motor using the right rpm to read in the normal range, about 50 mph. If after it is adjusted, it reads 5 mph slower at the same drill motor speed, then I know I have fixed it.
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