re: Abarth - Earth Lead? [AND coil pack]
Wow, that'll be great if that's the end of that problem.
Coil insulation breaking down could result in spark going to easiest source ie arcing to the engine rather than jump across spark gap
I'd check all your spark gaps if you're in any doubt as to how long it's been since you last looked as a too big a gap puts big electrical loads on the coil and, because they then overheat, thermal loads too and breaks down the insulation. The power required to jump the gap increases enormously with a too big gap or worn plug.
Coils just expire too though when they've had enough-poor things
Wow, that'll be great if that's the end of that problem.
Coil insulation breaking down could result in spark going to easiest source ie arcing to the engine rather than jump across spark gap
I'd check all your spark gaps if you're in any doubt as to how long it's been since you last looked as a too big a gap puts big electrical loads on the coil and, because they then overheat, thermal loads too and breaks down the insulation. The power required to jump the gap increases enormously with a too big gap or worn plug.
Coils just expire too though when they've had enough-poor things