The Ford Barn - View Single Post - Worn-out Distributer Cap Carbon Brush

Chuck Sea/Tac · 07-04-2021, 06:06 PM

I would think Brass particles are from the rotor or body terminals. You need to “ with no side play” on your rotor shaft, set the gap to around .025” on all four body tits. Also check to make sure all four lobes of the distributor cam give you the same point gap. As for the carbon button wearing out prematurely, you may not have had the rotor fully seated as you surmised. The other possibility is the spring pressure from the top of the rotor is too much. When you set the cap down, you should have a small amount of spring pressure.

07-04-2021, 06:06 PM	#4
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,354	Re: Worn-out Distributer Cap Carbon Brush I would think Brass particles are from the rotor or body terminals. You need to “ with no side play” on your rotor shaft, set the gap to around .025” on all four body tits. Also check to make sure all four lobes of the distributor cam give you the same point gap. As for the carbon button wearing out prematurely, you may not have had the rotor fully seated as you surmised. The other possibility is the spring pressure from the top of the rotor is too much. When you set the cap down, you should have a small amount of spring pressure.