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Old 03-19-2011, 10:02 AM
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sbc distributor issues

Hi guys, I hope some body out there had a similar issue as this. I've got a sbc 383 stroker in my truck, 4.88 dana 60 detroit locker, 33 x 21.5 x 15 M/T Pro Sportsman on the rear, Pete Jackson gear drive and more. Any way I set m timing, tighten down the dist. hold down, drive the car pretty hard a couple of times and the timing falls off. I recheck and have to reset the timing again. I am on my third different style of dist. hold down and ir still turns. I've tried pulling the dist. and cleaning all related surfaces and changing the gasket. it's OK for awhile, but when I hammer it and drive like it should be the timing goes away again. HELP Am I buying the wrong type of hold downs or is there something screwy internally. When the timing is on it runs like Jack the Bear, no offense to anyone out there.

Dennis

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Old 03-19-2011, 10:07 AM
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Check the lenght of the bolt in the hold down clamp,it could be bottoming out.
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Old 03-19-2011, 10:09 AM
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I id change that and finally got to the point of putting an ARP stud in thinking the same as you.
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Old 03-19-2011, 12:29 PM
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Be sure the drive shaft isn't too long and is holding the distributor up off the gasket. If you think this may be the problem you can use (preferably) a shim kit, or multiple gaskets.
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Old 03-19-2011, 12:58 PM
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OK now I feel like a dumb ***, when I took the dist out last time I noticed that the gasket was full of oil I thought that was unusual, but kind of blew it off. Now that you say that, I'll throw a little 1/8" inch shim and some RV on it and see if that works. It'll be a bit before I can take it out and beat on it, because it still is March and I do live near Chicago (ya lucky me huh?) and it isn't quite warm enough yet. I'll retain this post and let you know if it works. I feel pretty positive about it.

Thanks,

Dennis
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Old 03-19-2011, 01:39 PM
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If the block, heads and or intake manifold was shaved the distributor is now too long. Shims fix that.
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Old 03-19-2011, 02:31 PM
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Thanks, it seems like that could be the issue. I just checked the base of the dist. and I could see that the gasket is oil soaked again. I'll try a shim kit. It's really easy to get to now that I have the entire front off for body work.

Thanks again and I'll keep every body up on the fix.
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