Quote:
Originally Posted by rotorwrench
I like the old Packard high tension leads. I just wonder how close to original those materials are now. We need good stuff to keep these old engines working.
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I bought a spool of Packard 440 (original stuff) about 10 years ago to make wires for my 32 Cabriolet. I also used original Rajay 90 degree ends. I made the wires to exactly fit my setup - Vertex magneto, angle-drive, etc.. I also ran those wires through stainless-steel wire conduits (with 4 individual tubes). I have had ZERO issues with this setup . . . even with the high-energy of the magneto.
I also recently made a complete setup (off the same spool) for a Harman-Collins dual-coil setup for my friends 302 cubic inch flatty. So far, they have ran perfectly.
Harman-Collins Dual Coils: Also, it is important to note that when running a HC dual-coil crab distributor, that the yellow-plastic mid-plate is VERY susceptible to secondary high voltage leaks if there is any real resistance in the wires. Four cylinders just won't run right. It is super important to use high-quality copper-core wires if you want all cylinders to reliably fire with most older HC dual-coils.
There are some "tricks" to know when trying to get these older HC ignitions to run correctly - you MUST be able to run the secondary voltage through your complete system to check it out. This is why I run these distributors on my "Frankenstein" modified distributor machine - with both coils and the spark plug wires that will go with the specific HC distributor being tested. You cannot just check the distributor out without doing the above - or you're likely to have 4 cylinders that don't fire correctly. In quite a few cases, I have to modify the yellow mid-plate to stop the voltage leaks and misfires.