Kurk,
I had a similar problem with my BJ8. It was misfiring and had no power soon
after a full electrical tune-up. I found a thin coating of black powder inside
the distributor cap.
I determined this was carbon powder that came from the carbon brush (top center
of the distributor cap that makes contact with the rotor). I cleaned the
inside of the distributor cap with electrical contact cleaner and a clean
cloth. My car has been running fine ever since this one time experience. I
suppose what had happened was that the carbon brush had a break in period
initially before it fully seated and that produced the carbon dust. The cap
was not a Lucas but a high quality replacement from one of the preferred Healey
vendors.
Mark Neumann
BJ8
Message: 15
Date: Sun, 20 Jul 2008 06:50:49 -0400
From: "Kurt Leslie" <kansl@net1plus.com>
Subject: [Healeys] 62bt7
To: <healeys@autox.team.net>
Message-ID: <000401c8ea56$7cdc5280$e8c264d0@userch6dgy3z1d>
Content-Type: text/plain; charset="us-ascii"
Took my healey for a ride yesterday bt7, was a hot day but temp in car
ok no traffic. On the way home the engine started skipping on
acceleration and stopped completely within a few miles and I assumed
fuel pump, but it was not it was electrical. Removed distributor cap and
rotor had no real wear, less than 300 miles on cap, rotor,points and
condenser, however there was a small amount of black arcing dust on the
heal of the outer rotor contact, put spare rotor in and started and ran
fine, I am still not sure what happened as the rotor looked ok to begin
with any ideas? Perhaps the hot weather effected the condenser? Kurt
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