I helped bring 3 M62tu back from the dead with exchanging a good handful of valves. I spun suspect valves in a drill to pick the straight ones. We had a courple spare heads from a donor motor not terrible work, you'll figure it out. Get a second pair of eyes on the timing. I had almost three danger thing happen: I was doing the 720° turn to tension the chain and I just loosened the cam nuts and left the timing tool attached. Of course the left hand thread nut tightened without me realizing, fortunately my buddy was there in the garage and noticed the intake cam wasn't turning before I turned the crank far enough to break shit.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)