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nkaminar · 02-26-2024, 06:58 PM

Normally you can bend the tab up. It helps to have the rotor out of the distributor when you do this.

My experience with the rotor gap has been different than Synchro. This may be because my ignition was marginal but the smaller the gap the better my car ran. If you want to set the gap smaller than 0.025, just make sure that it does not hit any of the pins on the inside of the distributor body. Sometimes the distributor body can be loose on the distributor and move to close up the gap in one are and open it up in another area.

More: The higher the pressure the harder it is for the spark to jump the gap. So in a high compression engine more voltage is needed for the spark to jump the spark plug gap. What does this have to do with the rotor gap? Maybe nothing, but I contend that a smaller gap at the rotor will provide more voltage at the plug.

02-26-2024, 06:58 PM	#5
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 4,066	Re: rotor cap Normally you can bend the tab up. It helps to have the rotor out of the distributor when you do this. My experience with the rotor gap has been different than Synchro. This may be because my ignition was marginal but the smaller the gap the better my car ran. If you want to set the gap smaller than 0.025, just make sure that it does not hit any of the pins on the inside of the distributor body. Sometimes the distributor body can be loose on the distributor and move to close up the gap in one are and open it up in another area. More: The higher the pressure the harder it is for the spark to jump the gap. So in a high compression engine more voltage is needed for the spark to jump the spark plug gap. What does this have to do with the rotor gap? Maybe nothing, but I contend that a smaller gap at the rotor will provide more voltage at the plug. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. Last edited by nkaminar; 02-28-2024 at 08:40 AM.