View single post by NigelK
 Posted: 11-21-2016 07:30 am
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Joined: 07-16-2014
Posts: 182
Thanks Joachim. If the voltage was too low (possible given the age of the tacho electronics and the fact that I'm running with electronic ignition) then wouldn't the problem be constant irrespective of whether the gauge was mounted in the dash or not? Someone has suggested that a bad earth might be the problem, but again this should not be affected by whether the gauge is mounted or not. Do you know how the tacho should be earthed? Via the threaded mounting posts or via a separate wired connection? And, if the latter, which is the ground terminal on the back of the gauge? Best wishes, Nigel