distributor drive gear
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Joined: Feb 2004
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distributor drive gear
I have been fighting a bad miss on my 460 for quite some time. The engine has 2000 miles on it and the ignition system is an all new MSD unit except for the distributor itself. Today, the engine finally quit running while going down the road. When I removed the cap, the rotor would turn almost 90 degrees. I pulled the distributor out only to find that the drive gear was badly worn and missing some teeth! I turned the oil pump drive over by hand and with a drill, but it doesn't appear to be tight or stuck. Has anyone experienced this? I can install a new one, but how do I know the same thing wont happen again?
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Joined: Jan 2003
Posts: 1,162
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From: House Springs, MO
After you pulled the distributor (you DID pull it, right?), was the roll pin intact? How did the gear look? I recently had a problem like that. The 289, 302, 351W, 351M, 400, 429, and 460 ALL use the same distributor, but the 351M on up all use a larger gear. I didn't check, and the 351W dist. I installed worked for about an hour of running time, then shot craps on me. I pulled the cap and could just turn the rotor round and round by hand. I pulled the dist., and the cam gear essentially ate thru half of the teeth on the smaller dist. gear. The gears are actually pretty easy to replace. Punch out the roll pin, use a puller to remove the gear, and the hammer (GENTLY!) the near gear onto the shaft. Those bronze gears are DANG expensive to replace, so I just found an old trashed 460 dist. and pulled the gear off that and put it on the dist. I already had.
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