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Reply to "My Weekend at Willow Springs"

Scott, there are other possibilities which you'll find when you pull the distributor. First and most common is the roll pin. I've not heard of a double roll pin breaking so it may well be one of the others. #2 is breaking the pump driveshaft between the pump and distributor gear; hardened drivershafts are less than $15. #3 is actually shearing badly worn gear teeth off the distributor drive from a couple of causes, one of which is metal incompatibilty and the other is a cam with its integral gear cut on the wrong tooth-angle. The last has happened from all known cam grinders since they all buy cam-blanks from one of only about 3 manufacturers. I'll be waiting to find what the root cause actually was. On the good side, if dropping the pan and checking #1 or #2 rod bearing shows only light bearing wear, you dodged a bullet. Good luck-
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