How accurate should the tachometer be? I just had mine rebuilt by Palo Alto Speedometer. Upon reinstallation, I decided to check it's accurcy with an electronic meter. It's right on at idle - both devices read the same in the range of 800 to 850 rpm. But at 3000 rpm, the tach reads 250 rpm low. It doesn't get any worse at 4000 - still 200 to 250 low. Is that reasonable, or do you think it should be more accurate?
Craig
'70 280SL Euro, Manual, Leather
Silver/Black