Bob,
I am basing the replacement of the coil on the test results I have
made on the coil. They appear to be out of spec regardless of the
rest of the ignitionn system. Your points are why I was still running
the original coil, and why I was asking for verification of what my
readings said.
Patton
On 10/30/08, Bob Spidell <bspidell@comcast.net> wrote:
> Seems to me a lot of people want to blame the coil first when it's
> likely to be the last thing that fails in the ignition system (maybe
> because it's easy to replace). Unless the coil is cracked, leaking or
> getting extremely hot--probably due to excessive dwell--it's probably
> not the problem. A coil is nothing but some wire windings around an
> iron core with some insulation--possibly PCB--and has no moving parts
> (somebody'll correct me if I've gotten this wrong). My 42-year-old
> BJ8's stock Lucas coil with Pertronix ignition will throw a spark
> almost an inch in open air.
> I'd check points, rotor, cap, and cables first. You said the spark to
> #3 was weak, if I recall; have you checked the impedance on all your
> wires? Aftermarket (non-Lucas) caps haven't worked well for me, and
> if you have points that's the next (maybe the first) thing I'd check.
> But, sounds like you really want a new coil ;)
> bs
> Patton Dickson wrote:
>
> Not a strong one, I going to replace, I don't need to rely on a 52
> year old coil anyhow.
>
> Is there a good over the counter coil that has the screw in HT lead?
> I don't know of a parts counter in Dallas that would have a direct
> Lucas replacement.
>
> Patton
>
> On Wed, Oct 29, 2008 at 8:29 PM, Mark LaPierre <lapierrem@sbcglobal.net>
> wrote:
>
> Do you get spark from the tower of the coil?
> Silicon is a dandy insulator. That could
> be one of your problems too.
> Mark
>
> --
> *******************************************************************
> Bob Spidell San Jose, CA bspidell@comcast.net
> *******************************************************************
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Patton Dickson - http://Austin-Healeys.com - Plano, TX
1957 Austin-Healey 100-Six "Built to run 'til the road wears out."
1977 Newport '28
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