just got back from the shop and they had it pretty torn down, the timing chain guide is supposed to have a UHMW guide to keep the chain from slapping around but it disintegrated and is now non existent, The U-shaped piece is whats supposed to have it attached.
you can also see the pilot valves that move the intake cams for the variable valve timing which is what i originally thought the problem was.
Here are a few shots of the engine torn down, pretty fancy looking engine IMO.
and here is the head, you can't see it in the pic but a bunch of valves are bent due to the slip in timing when the guide let go, both heads are coming off for a total Re and Re. the pistons and bores are in great shape so the bottom end isnt being touched.
there are so many special tools involved with these, this would definitely not be a reliable over-lander if you where going any more than just out of town range.