Just in the process of adjusting valves (my first DIY attempt) at roughly 45,000 miles (62,100km).
All intake valves were within spec, all exhaust are tight (a few at .003 off).
Geez, there are a lot of parts to re and re!!! Pictures help!
Oh, here's a tip: if you lose one of the valve cover bolt washers when removing the valve cover
and don't find it inside the valve train area (whew!), look in the spark plug wells.......(grab your
girl friend's makeup compact for the mirror and return it clean.......).
Don't ask how I managed to get that sucker off of the #2 spark plug (it's a real cozy fit!). Too small
an opening for my magnet but some creative thinking and a few swear words, and voila!
Just make sure you remove the washers first (they stick) from the valve cover before removing it.
Lesson learned!!!!