Ever notice a slightly degraded carbon core wire will cause an intermittent or total misfire, worse when raining and wet.
With the higher resistance in the carbon core wire the occurrence of the spark jumping out of the insulation to a valve cover through the side of a wire or right out of the boot to the head before it reaches the plug is greatly increased.
An old solid core wire with nasty insulation cracked to the point that you can sometimes see the exposed wire can continue to deliver the juice to the plug and keep the engine running right.
Comparable to how a garden hose with 10 pin holes does not leak until you put your thumb on the end of it, at which time much like electricity the water will exit the hose wherever the least resistance is found.
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Today's Featured Article - New Life for an Old Allis - by Tyler Woods. My friend Jon, has an old '39 Allis Chalmers B. He thought it a marginal tractor that had long since served its time. She smoked terribly and never had much power but he couldn't afford another so he was limping along with what he had. Jon's Allis has a small front loader and though it doesn't carry much, it serves his needs. It was the hard starting and low power that made him think it was time to replace the old girl. Jon called me to help him discover why his tractor wouldn't start
... [Read Article]
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