That didn't make sense in me, and when I checked here, it definetly didn't make sense. Sounds like the lower tube seals to me. They can leak oil and ruin the wires just like you said, and they can't really be affected by the head gasket unless there's massive compression leaking into the crankcase and blowing the seals out, but I doubt it. Maybe do a compression test.
FWIW
FWIW
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