What is the best way to clean intake valves on this rig? I look in the Infiniti service manual to see about closing each of the valves but didn't find information in there. I have the intake manifold off and the crank at TDC (top dead center). All the valves look closed, but I wanted to ask to see if I am missing something? I have it apart now because I have to fix the High-pressure fuel pump bucket, so I thought this would be a good time to do some housekeeping like cleaning the injectors and such. Thank you in advance.
