>From Jon
I believe that the main issue with aging spark plug wires is the
breakdown of the insulation itself, leading to cracks, thin spots,
etc. which can promote induction firing or allowing the spark itself
to actually jump out of the wire to another wire or ground. Does
anyone know if the conductor itself is consumed as well? If not, it
seems like maybe a little split loom tubing would get a few more years
out of the wires?
Not really, even without visible sparking there will still be current leakage and increased resistance in the wires due to the insulation's breakdown........
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