[Cliff R]

Wear on the lower bushing should only happen in one place as it's got a helical cut gear on it and the cam is trying to push it away I one direction only.

Wear all the way around without any damage to the shaft tells me it was probably pretty darned loose or the wrong size right to start with as it really can't move around in a circle like that with the cam driving it, unless of course the shaft has a pretty good bend in it someplace.........Cliff

[gtofreek]

Originally Posted by Cliff R

Wear on the lower bushing should only happen in one place as it's got a helical cut gear on it and the cam is trying to push it away I one direction only.

Wear all the way around without any damage to the shaft tells me it was probably pretty darned loose or the wrong size right to start with as it really can't move around in a circle like that with the cam driving it, unless of course the shaft has a pretty good bend in it someplace.........Cliff

I totally disagree with that Cliff. I took this distributor apart when it was new and the bushing was not loose. You have to consider that when this is going bad, that distributor gear is being pushed all around once it gets loose. If the bushing is soft, it's going to wear anywhere the shaft makes contact with it. You can't tell me that the shaft is not dancing around once it starts getting loose. It's going to be trying to get away from the cam gear anyway it can. Especially once the reluctor starts hitting the magnetic pickup. That in itself will try jarring the shaft all over the place.

[gtofreek]

Originally Posted by Cliff R

Wear on the lower bushing should only happen in one place as it's got a helical cut gear on it and the cam is trying to push it away I one direction only.

Wear all the way around without any damage to the shaft tells me it was probably pretty darned loose or the wrong size right to start with as it really can't move around in a circle like that with the cam driving it, unless of course the shaft has a pretty good bend in it someplace.........Cliff

Also, when I rebuilt starters for a living, I saw on many occasions where the starter bushings wore out all the way around the shaft, and not just directly across from the ringgear. Once the bushing gets loose, the shaft just starts bouncing all over the place. According to your logic, those bushings would only be worn directly across from the ringgear. Just doesn't work that way.

[STEELCITYFIREBIRD]

Yeah I'm thinking if it has a bushing it may be one of the imposters that are/were going around.

[STEELCITYFIREBIRD]

If you go with a CD box....get one with a rev limiter!
A quick search produce this image as the first hit;
https://www.bing.com/images/search?v...x=0&ajaxhist=0

[Va68goat]

Formulajones,

The distributor was pulled several times but nobody caught it. I think because it was a new MSD distributor, nobody expected this.