Make sure that the rotor spring or contact is making contact with the button on the top center of the distributor cap. Measure the distance from the center of the rotor to its outside edge and make sure it is wide enough to pass over the outlying terminals on the distributor. Often the terminals will have L-shaped cut out so the rotor arm comes close to the teminals at both the side and vertical gap.
I ran into exactly this problem with a friends late 60s Barracuda. The replacement rotor or cap was not high enough to touch the button on the cap or the rotor arm was not long enough or high enough to come into close proximity to the cap outer contacts. What many people don't realize is that the spark generated by the coil has to jump a very short gap between the rotor arm and the cap terminals.
I just read that the rotor clearance between the arm and the terminals should be between 0.10 to 0.035 inch. I would double check this.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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