Rev counter

[biper]

Don't know if this is the place to put this as it an electrical problem. My rev counter gets to 3500rpm and then drops to 0. Havn't got a clue on electrics so any advice would be welcome before I have to think about taking the rev counter out.
Many thanks
biper:

[steve_d]

I may also be in W/V but even I can't see what car it is.

Would help to know make and model to get some idea where the rev signal comes from.

Steve

[biper]

Evening Steve
It is the white Marcos, Rover V8, just down the road from you. I assume that power comes from the coil. Bit of a problem as I want to do track days and they ask you to rev to 4500 and they won't pass it if the R/c is not working, as I found out at Goodwood.
Barrie

Edited by biper on Thursday 3rd May 19:17

[steve_d]

If it's wired the same as my Range Rover then the signal wire comes from the alternator of all places. Have you tried connecting another rev counter to the signal? I have a Gunsons dwell tester that also outputs revs so that may work.
PM me if you want to give it a go. Will be around Friday PM and Sat getting my act together for camping at Stoneleigh Show. You going?

Steve