Hi, Patrick. On a '3, the tachometer is run by a cable coming off the
distributor, so not electrical.
> On May 29, 2019 at 9:54 PM Patrick Baize <pbaize@satx.rr.com> wrote:
>
>
> I have that gremlin also, Stag will run, and just quit. tried to find
> it, can't. I had the original ignition, new coils, points. Pertronix
> and optical type(don't remember brand)Â But a day later, will start
> right up.  I just wonder, does a Mk1 Stag and TR3 use the same style
> RPM gauge. The type where the coil wire goes THRU the RPM gauge?Â
> Because if you undo the plug to the gauge, the car wont start. I wonder
> if the gauge is failing?
>
> Thnx
>
> Patrick
>
> 71 Stag
>
>
> 5/29/2019 8:36 PM, TERRY SMITH wrote:
>
> > Alas, I have been a good boy...relatively speaking, of course. Yet
> > nonetheless the Prince of Darkness, St. Lucas, has descended to wreak havoc.
> >
> > TR3 engine starts and runs, then flutters and, now, dies. I've been
> > through the fuel system completely, short of a magnet in the fuel tank,
> > which I might try. Completely disassembled the carbs again today. Jets
> > centered, float bowls have no gas in them, float valves perfectly adjusted,
> > and the puff test shows they stop flow as they should. Mixture and idle is
> > right. Not to mention I tried a complete swap out of these carbs (rebuilt
> > by Quantum Mechanics some years back).
> >
> > I've tracked wiring through the system. I thought a partial open (broken
> > wires) at the lighting switch where it feeds the ignition switch would fix
> > it. Didn't. Replaced the 60 year old ignition switch. Didn't fix it.
> > Double checked the fuse holder for solid and clean connections. Not the
> > issue. When it does run, the voltmeter (not ammeter) shows just the 12
> > volts from the battery, and not a charge. White wire from the fuse to the
> > coil tests no short to ground, and bypassing it with another connecting
> > wire doesn't cure the problem either.
> >
> > So question. When one has done the Pertronix modification (I replaced that
> > too), the generator control is wired differently. I've checked connections
> > there and they're good. But is there any break-down inside that could
> > cause a power disruption to the ignition system.
> >
> > Second question, I can't really tell from the wiring diagram whether the
> > generator or the starter could be stealing power from the ignition system.
> >
> > I'll be back at it tomorrow, but any thoughts?
> >
> > Best,
> > Terry Smith, '59 TR3A TS 58667
> > New Hampshire
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> >
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