MGB Register Forum

Thanks Steve, the other wires were connected it was just the green one that wasn’t, and when I reconnected it and turned ignition on the Rev counter needle shot around to 7000rpm and stayed there!!

Hi All, I’ve recently bought an mgb with an RVC Rev counter that wasn’t working so I thought I’d have a quick look at it and found the green wire had been disconnected from the back of it, so I reconnected it, turned ignition on and needle went all the way around to 7000 rpm and stayed there(engine ...