XJ6 & XJ12 Series I, II & III 1968-1992

tachometer problem after distributor change?

Old 04-02-2008, 10:49 PM
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Default RE: tachometer problem after distributor change?


I'd have to pull out some old diagrams, but I think the tach feed wire is white with blue and slate tracers. Clean up the wires to the module you removed, and see if you can find it. Make sure the likely candidate has no power going to it with the key on. The right one will make the tach work when you attach it to the negative terminal of the ignition coil.
Old 03-09-2015, 11:48 AM
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Here is a challenge: I am trying to use a Jaguar XJ6 series 1 tach (because it is 6 cyl) to replace the mechanical tach on my Triumph GT6 (hey who let me in here!).
the tach I have has two electrical contacts on the back; one spade terminal and one bullet terminal. Hooking either one to the negative terminal of the distributor, the other to ground, doesnt work. Is there a sending unit thats supposed to go with this? The tach is a smiths RVC2602. Harlen19
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