I believe that most new coils have the ballast built in. If that is the
case, retaining the ballast resistor would exacerbate the problem. My
Duetto had a bad connection to the ballast resistor years ago that caused an
intermittent spark.
Bill Sinclair
Hagerstown, MD
Date: Sun, 25 Aug 2013 15:00:45 -0400 (EDT)
From: [email protected]
Subject: [alfa] Intermittent spark problem
I drove my '69 Spider into the garage last week to install a new radiator.
Now it won't start. Right after the install, it started and ran for a
couple of minutes, then cutoff. Then it almost fired up a couple of
times. So, I
began checking the wiring from the coil to the distributor. I cleaned
connections, checked continuity and even replaced the coil with a new
one. In
checking for spark, I noticed that I would get an occasional spark upon
cranking the engine, but very intermittently or not at all. I did not
change
the factory ballast on coil mount. The spark plug wires are almost new,
and I
checked the spark plug gap. Any ideas or suggestion what the problem
might
be?
TIA
Bruce Sharer
Raleigh, NC
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