Repeating a previously-reported real similar event-- over a year ago on the 6-Volt system of our ’55 C-300. Much loss of power. Carbs, plugs, ignition components, even valve springs checked out or replaced—nothing helped. Finally, the wire between the coil and the distributor was checked and found to be a high-resistance component—probably due to frayed or broken strands of copper. The simple little wire was replaced and the problem went away. Who’d a thunk it? And, I used to diagnose this problem on stovebolt Chebbies in the ‘50’s where that wire would occasionally fray or break from vibration, oil and heat.
I don’t know what the current draw of the ignition system is at speed and load but all wires and connections need to be in top shape. A friend had his C or D just die on the road and could not get started. Careful study revealed a loose connection on one of the tiny wires connecting the dual points. The wire was still stuck behind the screw but the screw was just loose enough to create an intermittent situation. The connection looked OK but needed to be physically checked with just the right ignition-grade screwdriver—a really challenging job on hemi’s.
Both experiences involved wasted expenditures. I hope sharing them might be of some help.
Brentwood, CA (NOT OJ’s home town)
I have been trying to eliminate a miss in my 300H.
Posted by: "Rich Barber" <c300@xxxxxxx>
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