Re: 5.0 stockers/ distributors
 

Thanks for the ideas, I'm busy at work, hopefully have more time to look on the weekend.Again, thanks.

Re: 5.0 stockers/ distributors
 

Ok, I'm not guaranteeing this is the problem, but it sure looks like it. The cam is moving back and forth a little under 1/8 inch. The pictures show what effect this has on the timing change, I'd say it's moving almost 3/8" at the rotor, extended to the cap edge. Next I've gotta find why the cam gear isn't going on further. I think it's the dowel pin. ....Yikes I tried to post pics but I don't know how to resize them to fit.

Re: 5.0 stockers/ distributors
 

Weird deal... I tried another timing set I had in the garage [used, but good shape] I have virtually NO movement at the rotor, when cam pushed or pulled. I don't know how it could be the cam sprocket, unless they machined the part that snugs to the cam thicker. They are both Cloyes multi keyed double rollers.

Re: 5.0 stockers/ distributors
 

Are they the same part number.?
There are two part numbers for the SBF.

Re: 5.0 stockers/ distributors
 

I believe they are, both the same C609 is stamped on the cam sprocket. I think the problem may have come from the fact that I used a thin washer between the cam sprocket and the thrust plate, it must have come with the T set. I think it ate away at the back of the sprocket. You can see its been shaved down quite a bit. The cam end play with Tset from garage is .006 +-, the one on the car had .09, not .009, but .09! Yikes!

Re: 5.0 stockers/ distributors
 

The washers are not always required. Always check the end play and that will help you decide if you need the shim. There are also 3 different styles of retainer plates that are used on SBF's.