I've owned my 67 400 for 20 years now. Have been stuck in many parking lots over the years waiting for the starting system to cool down. As much as we work on our cars around here, keeping the Solenoid in good shape is an easy chore, and has proven to be a cure for me. I'm sure next summer I will have to drop the starter again and replace the Solenoid, or at least the contacts. This spring I went through it again, and rotated the contacts 180 degrees, been working like a champ all summer. Yes I do have a heat shield on the Solenoid, but I dont think it really cured much. You can tell when you get that first slowing of the starter, not worth waiting till you get Stuck:)
