1800: - I think I killed my rev counter - any advice?

SteadyRolling · May 10th, 2024, 10:58

Oh man, I swear this car is fighting me at every turn… Recently got back on with recommissioning the ES with its engine rebuild after a lengthy hiatus - first problem was it wouldn’t run, but eventually discovered the dizzy must have somehow changed position while disconnected. Once twisted round a bit, it was idling at 2-3000rpm but managed to bring it down near to what it should be in readiness for setting timing properly. But then I discovered the dizzy’s gasket had fallen off so I pulled it off again to refit - and this is where the ‘fun’ really started…
As I was tightening the two bolts on the mounting plate, there was a flash (having forgotten to isolate the battery). Heart in mouth I turned the key - it fired up ok, still running a bit rough, but now the rev counter isn’t working. All the other instruments are working (bar the obvious clock and also oil temp - bit annoying as I’d replaced the broken sensor) and the fuse was OK. Reconfirmed the connector on the dizzy is properly located too. So anyone got any ideas please - the world of electrics is a bit of a mystery to me…
It’s Pertronix electronic ignition btw if that makes any difference.

May 10th, 2024, 10:58	#1
SteadyRolling New Member Last Online: May 28th, 2024 13:35 Join Date: Jun 2019 Location: Greater Geordieland	I think I killed my rev counter - any advice? Oh man, I swear this car is fighting me at every turn… Recently got back on with recommissioning the ES with its engine rebuild after a lengthy hiatus - first problem was it wouldn’t run, but eventually discovered the dizzy must have somehow changed position while disconnected. Once twisted round a bit, it was idling at 2-3000rpm but managed to bring it down near to what it should be in readiness for setting timing properly. But then I discovered the dizzy’s gasket had fallen off so I pulled it off again to refit - and this is where the ‘fun’ really started… As I was tightening the two bolts on the mounting plate, there was a flash (having forgotten to isolate the battery). Heart in mouth I turned the key - it fired up ok, still running a bit rough, but now the rev counter isn’t working. All the other instruments are working (bar the obvious clock and also oil temp - bit annoying as I’d replaced the broken sensor) and the fuse was OK. Reconfirmed the connector on the dizzy is properly located too. So anyone got any ideas please - the world of electrics is a bit of a mystery to me… It’s Pertronix electronic ignition btw if that makes any difference.

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