So, this has been going on for a while now, the new dash has been installed for a year or so but the rev counter has never worked. It's an original Group 4 mechanical one that I was lucky enough to be able to buy from Gerry a few years ago and it resulted in me spending a small fortune building up the rest of the gauges and converting the car to left hand drive.
The issue is how to drive the gauge. I looked at an electrical drive that Vince used for his speedo but it wouldn't react fast enough for a rev counter so i was back to finding a mechanical route. The simplest way was to drop a Dino in but the budget wouldn't stitch to that so I had to work out where to pick this up from.
First step was confirming that the gauge needs to run at half crankshaft speed. So I needed to sort out a method of driving a cable from a camshaft. And that's where it started to get complicated...
Guy
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