Thanks for the reply Motovista.
That was what I was after. I didn't realise you could get the rocker cover off in-place and see the cam mark. I have a snake (Camera on a bendy stick with a light) which should take care of that. Phew. You did mention a mirror up the posts a bit, but there was "might" in the same sentence so I figured you hadn't tried it.
I really have cam timing still as the most likely cause, Ivo believes he has it right, but the flat out test contradicts that. Of course he would try to convince me it wasn't the cam timing because unless he was a total wanker he would believe he'd got it right. What I wasn't prepared to do was just go in there and say "It's wrong, fix it" without "knowing", in the absolute sense of the word, it's wrong and showing him. I've had enough experience with people telling me I've buggered something up on a hunch of theirs to require more evidence prior to wasting my labours, I wouldn't expect anything different from anyone else.
Sorry to be so touchy on the subject, but most of my life I've had to deal with people doing what you told me to do to someone else.
I'll pop the rocker cover and water pump off this afternoon. Despite my gnashing of teeth, I really hope the cam is out. In fact nothing would cheer me up more!
Thanks for the instructions, I'll post how I go.
Now calm down Caketin and get on with the job.