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Reply to "Role pin for distributor - setup unclear"

I had a 65 Mustang 289 twist the shaft as George posted. The cause was a piece of the original plastic coated timing chain gear got lodged in the oil pump. I saw the oil pressure drop and then started hearing the lifters and pulled over. I have a Crane roller cam in the Pantera and I read that I needed a Brass gear. I put it on the MSD (measured exactly) and drove for about 1500 miles and decided to check it for wear. It was already wearing. I said what the heck and got a Ford steel gear. With all the hoopla about the pin I put 2 in. One in the standard location then drilled another hole 90 degrees rotated and above the original pin location. No issues for years, maybe because I change the oil regularly.

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