Item number #2 on Apples12 is incorrect.
The cam should not be turned until the injector is completely compressed. If you do this you will cause an interference condition, which may break the timing belt and/or bend the valves.
Valve lash - like injector lash - needs to be performed when the cam is on base circle (when the the injector lobe is at lowest point). If you read the instructions at the top of the post, Frank06 tells you to do lash when the intake lobe is at it's highest point relative to the head (and then the injector is on it's lowest point on the cam) - but it SHOULD BE DONE when the intake valve is closing, which makes the exhaust valve lobe the thing that is highest above the head that you must align with the roller pivot . If you look at Frank06's picture again, you will see that the EXHAUST valve lobe should be right across from the injectors roller pivot. Frank06 said as much in his post (about the intake lobe, but should be the exhaust lobe), if you are careful to read it.
Again, the injector lobe needs to be at it's lowest point, which is just after the intake valve closes and the exhaust lobe lines up with the roller pivot on the injector rocker arm (motor turns clockwise at the crank bolt). After you back off the lash by 180 degrees, the rocker arm should have just a little play in it. If you turn the motor over by hand (twice, to make sure there is no interference in the motor), the rocker arm should NEVER be loose except for a little bit of play when it is on base circle.
If you don't know which is the exhaust lobe, line up the valve with the exhaust manifold, you will see which is the exhaust and which is the intake for every cylinder.
Yes, I know I am dredging up an old post, but since I was doing injector install and injector lash on a BLS/BRM motor swap- and this is the first post that my search on injector lash showed up - I thought it might be important to correct before someone trashes their engine.
I also looked through the Bentley manual and a Haynes manual - they both have it wrong too. Yes, it is possible for people to make a mistake printing out the manual, and it can be propagated throughout other reference materials. I attepmted it their way initially, but the engine locked up and the spring inside the timing belt idler stretched (causing the timing belt timing to become incorrect). The way they have it posted in the reference material is simply wrong.