[DeTomaso] 73L dying - Resolved !

[forestg at att.net]

Just go to any auto parts store and buy an ignition ballast resistor for any late 60's early 70's Mustang. It will have the proper rating for what you are doing and is relitively inexpensive. Why try to reinvent the wheel?
Good luck,
Forest

-------------- Original message ----------------------
From: <Konrad.Szwab at AlconLabs.com>
>
>  I guess I will put a 1.4 ohm 40W resistor in series with a 30 Amp fuse
> in the fusebox area, then I will check the voltage.
> 
> I am not sure I have the original coil, looks newer. Maybe my father
> changed it, I wish I could ask him. The coil is an Accel something
> performance with a 12V rating, but who knows if 12V is really 12V or
> just to differentiate against a 6V version.
> 
> I will see if it runs poorly with a series resistor due to low coil
> voltage.
> 
> -----Original Message-----
> From: F&D Terry [mailto:gt5s at bcpl.net] 
> Sent: Thursday, August 09, 2007 10:08 AM
> To: Szwab,Konrad,HOUSTON,IT
> Cc: detomaso at realbig.com
> Subject: Re: [DeTomaso] 73L dying - Resolved !
> 
> Many cars have that pink wire totally burned as a result of leaving the 
> key on with the engine off while listening to the radio. If the engine 
> stops while the bumper on the points comes to rest on a cam load, all is
> 
> well but that usually is not the case. A recent look at an early wire 
> harness revealed the pink wire had been totally burned. Sometime this 
> will cause insulation on other wires in the bundle to melt and short
> too.
> 
> Fred T.
> 
> Konrad.Szwab at AlconLabs.com wrote:
> 
> > My car is odd, I guess. The pink wire was directly connected to the
> >coil and I could not find a series resistor ANYWHERE near the key
> >connector. Maybe it is hidden somewhere in the middle of the cable.
> >
> >I guess I'd better get a 1.4 ohm resistor and insert it in the circuit.
> >
> >What wattage should be that resistor be, 5W ?
> >
> >-----Original Message-----
> >From: detomaso-bounces at realbig.com
> [mailto:detomaso-bounces at realbig.com]
> >On Behalf Of Murch, J L
> >Sent: Thursday, August 09, 2007 9:21 AM
> >To: detomaso at realbig.com
> >Subject: [DeTomaso] 73L dying - Resolved !
> >
> >Konrad,
> >
> >Glad you found the problem.  
> >
> >The 1.4 ohm resistance is intended to be a current limiting resistance
> >to
> >keep the coil from burning up when the key is on, the points are closed
> >but the
> > engine is not running. (Kicking back in the garage, working on the
> car,
> >or eating a burger at the local drive-in, but the engine off).  The
> >early Panteras used fixed wirewound resistors mounted on the panel next
> >to the coil.  The newer cars have a Nickel-chromium wire section in
> >series with the Light-Blue wire up near the ignition 
> >switch terminal block at the steering column.
> >
> >Jim
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