[wwest]

Originally Posted by Discseven

These coils heat up nearly instantly. I suspect that given the nearly closed contact, the immediate heat was causing the shunt to close and so the jump from low to medium a few seconds after starting AC.

Drove for an hour today and no jump from low to medium. Had 1 surprising jump from medium to high... that's NEW. I failed to look at shunts with AC on and resistor out so did not check to see how far they move when coils get hot. Might be they need a greater gap than 3/64." Will sand contacts when resistor is pulled---good idea Will. TY again for shunt note.

Have not gotten to "noise" yet as planned. Will see about attending in the afternoon.

Very fine emery...