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vonheine · 07-14-2019, 02:23 PM

I just bought a Model B distributor. I am planning to experiment with it in two different ways. 1) I am going to run it on s stock engine with the static timing set at 3 to 5 degrees BTDC. 2) When my second engine is built, with a 5:5:1 head, I will static time to TDC for less total advance. The stock engine will tolerate more total advance than the HC head. What I want to know is, what exactly is a high speed distributor cap for a Model B? I saw one on EBay and I had interest, because I find the quality of diamond shaped distributor caps to be horrible. However, it appeared to have no notch for the Model B timing indicator, or the advance window if used on a Model A. How does that work? It was a Nioff FF-71. I have taken a “modern distributor cap “ for a Model A and simply added a second index notch at 90 degrees to the Model A index notch. Now, I can use this cap on a Model B distributor. The advance window is still required for the Model B to clear the timing reference tab. Any inputs on this?

07-14-2019, 02:23 PM	#16
vonheine Junior Member Join Date: Aug 2018 Posts: 14	Re: Model B distributor I just bought a Model B distributor. I am planning to experiment with it in two different ways. 1) I am going to run it on s stock engine with the static timing set at 3 to 5 degrees BTDC. 2) When my second engine is built, with a 5:5:1 head, I will static time to TDC for less total advance. The stock engine will tolerate more total advance than the HC head. What I want to know is, what exactly is a high speed distributor cap for a Model B? I saw one on EBay and I had interest, because I find the quality of diamond shaped distributor caps to be horrible. However, it appeared to have no notch for the Model B timing indicator, or the advance window if used on a Model A. How does that work? It was a Nioff FF-71. I have taken a “modern distributor cap “ for a Model A and simply added a second index notch at 90 degrees to the Model A index notch. Now, I can use this cap on a Model B distributor. The advance window is still required for the Model B to clear the timing reference tab. Any inputs on this?