what would be the basis for that assumption???
rjrva said in post #12: "Turned out the reluctor had loosen from the distributor shaft, and could rotate slightly, changing the timing."In post #14 he said it was a Delco and that the reluctor was badly rusted...... and in post #16 he said it was a new system.
In post #17 I asked if he could post an image of the distributor and the reluctor.
Pickup coils and reluctors have been operating off magnetic principles for well over a century....
Understood.
Mallory and Chrysler have used VR triggering for years.
Merc's EST and I believe the Delco's EST use photo-eye triggering..... yes/no?
Pertronix and I believe today's Prestolite use Hall Effect triggering.
Mark, when rjrva mentioned that the "reluctor" loosened up, I was surprised to hear that the Delco used VR triggering.
And if Delco does, I would be even more surprised to learn that their reluctor could loosen up from the shaft.
Hopefully rjrva will figure out how to post images.