Posted November 18, 200915 yr comment_300707 Before adjusting my SU float bowl levels yesterday, I disconnected the spark plug wire attached to the coil. While turning the engine over to operate the mech fuel pump I hear a sparking noise coming from the coil. My thoughts at the time were, "gee, that's interesting, I probably don't want to get too close to that". After the bowl's were adjusted, I got in and took the car for a spin. I immediately noticed no tach movement (very little anyway:disappoin). I am guessing my spark was going into the green the wire that leads to the tach. Bummer, that means something in there is toast. So will have to pull this out and get it fixed eventually. From readin other threads, looks like I can pull it out the front of the dash by undoing two screws. Can get it fixed for $40 - $60. Wrote this just as a warning for those disconnecting plug wire from coil. Not the best place to make that disconnect.Rich Link to comment https://www.classiczcars.com/forums/topic/33868-fried-my-tach/ Share on other sites More sharing options...
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