Well, i got the small socket wrench for the 7mm fuel line and it worked, then I was able to unhook the wiring harness, and remove the coil pack to free up the valve cover, got the cover off and checked the guides, and chain and sprocket, with the tensioner removed already there was only a little play in the chain. everything looks fairly clean around the cassette, guides and chains, the only notable was the very first valve spring area had a more of a carbon build up around the bottom of the spring, the other ones were clean. I didn't see any shavings or pieces, both guides look pretty good, chain looks great. also the tensioner seemed to work pretty well spring has good tension, but I wonder if it just wasn't working properly with the hydraulic oil port?? I know my rattling prior to all this was from the left hand valve cover area, should I just replace the gaskets and the tensioner, and try it again, If it still rattling loudly, I'll just take to my friends used dealership and trade it in something.