I do indeed have a service manual, but I don't really see anything to the topic of actual problems like the one I have. When I was taking off the right crankcase cover I had to obviously drain the oil, and it was just nasty and pitch black. But I was told I would be able to reach the cam tensioner to possibly remove it or inspect it and as I was inspecting it the lock I think more towards the front of the engine, was not putting any pressure on that spring which I'm assuming is or was the problem but before I put new fresh oil back in I wanted to make sure it was it. And pictures, I have some if you would like too look over them. And the oil, at the bottom of the block there was metal shavings.