Well I finally had to do this repair, got tired of listening to the clicking and clattering. The job wasn't to bad, just pay attension to line up the timing mark on the frnt. on the cam, line it up with the mark on the frnt. of #1 bearing cap ( #1 at TDC ) . I used zip ties to hold the timing chain in the correct position on the sprocket, I did mark both just in case. There is a critical dismantling proceedure for removing the cam as it is cold cast and will break if not removed properly. The #1, 3 , 5 caps should be removed alternating the loosening and removal. The #2 and 4 are the critical ones to unloose and re-torque one turn of each bolt alternating back and forth so as to remove or add valve spring pressure uniformly. Sounds tricky but not really, a little nerve racking until I had it back together and running, quietly now!