Jim...thanx again for the suggestions. I worked for AMC in the 80's just when the 4.0 was getting ready to come out; so never really new nothing about the engine except they were saying it would be even better than the previous generation of 6's. Knowing the previous 6's were a very long term durable engine I was very reluctant to believe that; and also never even knew until you told me about the timing chain/gears interchange on these engines that they even had any similarities at all. I will be definitely be taking you up on your suggestion to use the later version of chain/gears when I go thru the engine (hopefully this winter if I don't end up tearing it apart now); but by the time I got your suggestion on the AMC list I had already ordered a direct replacement; and received it and had it sitting in the garage to install. It is all steel gears but again a direct replacement. So that is what actually ended up being installed was old version all steel gears. Also; didn't know the cover would need replaced with the newer version of chain/gears and cam "button". Can you refer me to a supplier for the newer cover and cam button? And what do you mean by "button"? If you see my most recent previous post; I got it running last night with no slapping/clattering noise at all. Fuel line is disconnected and just used squirt bottle of gas down carb with sea foam mixed in. I also tried it again this morning when leaving for work and still no clattering but now get exhaust noise sounds like a exhaust valve sticking maybe coming thru carb. Since I wont be able to spend any serious time on it til next week ( I am scheduled to work 71 hrs this week; so have no life this week) I'm gonna continue to run trans fluid thru it and see if I can get lucky enough to just keep it running long enough to check the rest of the car out so I'll have a plan for this winter and know all the issues the car might have and then spend some serious time on the all the issues I find this winter. Hope I didn't "Ramble" too much and look forward to your response again. Thanx again, Duane Hacking -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.amc-list.com/pipermail/amc-list/attachments/20070619/c2260eec/attachment.htm _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list