Optional steps!
This is a bit of a pain, but if you are really picky like I am, and you want your VANOS timing to be as accurate as possible, you can perform these extra steps. Non-psychotic people can skip to step #71.
Since the timing chain and guides tend to settle into place a little when the crankshaft is rotated, it helps accuracy to manually turn the engine over then re-set the timing. This requires quite a bit of extra work and is not required, so perform these extra steps only if you have the extra time and are a perfectionist.
WARNING – If you decide to perform these extra step make sure that the cam bolts that you just snuged up are tight enough to prevent the cam sprockets from slipping while rotating the crankshaft. 40-50ft/lbs
To perform the extra steps start by removing all of the cam lock blocks and the TDC lock pin.
NOTE: The intake cams may snap to a different position when the intake cam lock blocks are removed. This is normal.