On Tue, 12 Jan 1999, John Cowan wrote:
> I unthinkingly pulled the high tension ignition wire out of the top of
> the coil on my '60 TR-3A. Then I unscrewed the plastic nut that surrounds
> the wire. I big chunk of the threaded part was gone - perhaps a third of
> its circumference, up to about half its length. I expected to find the
> broken piece sitting in the coil, but did not. The plastic nut appears to
> have been abraded away, but the threads in the coil seem ok.
> I theorize that the lead was not inserted far enough into the coil to
> make good electrical contact and there was sparking going on there. Anyone
> encountered this problem before?
> In any case, this is a miserable design. Anyone have a strategy for
> preparing this connection properly?
The HT lead should have on the end of it (after the threaded plastic nut
is slipped over the wire) a small brass(?) disc. The wire strands from
the HT lead pass through a hole in the center of that disc and then are
splayed out radially. That helps hold that disc on as well as helping to
make good contact. As I recall, the disc will not pass through the
threaded nut, so if properly set up it all holds together pretty well.
Of course, it doesn't work quite as well if you don't have metal core HT
leads. ;-)
--Andy
* * * * * * * * * * * * * * * * * * * * * * *
* Andrew Mace, President and *
* 10/Herald/Vitesse (Sports 6) Consultant *
* Vintage Triumph Register <www.vtr.org> *
* amace@unix2.nysed.gov *
* * * * * * * * * * * * * * * * * * * * * * *
|