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MGC Rev Counter

Posted: Thu Jul 25, 2019 8:32 pm
by andyf
Hi, my first post. I have just bought an MGCGT Auto and the rev counter over reads by about 100% ie at an indicated 40 mph its showing 4000 rpm and at 60mph, an indicated 6000rpm! I was wondering if I had a rev counter from a 4 cylinder MGB. For info my dial is orange lined at 5000 to 5500 and red lined from 5500 to 7000.
Any suggestions would be appreciated.