Final fitment wrt upper/lower intake boot
I've just been through these systems on my 2000 528i,
actually, a bit deeper. The whole intake manifold had to come off
to replace disintegrated plastic coolant pipes. I have 2 issues
still nagging me:
1) The upper/lower intake boots don't mate up well. The ICV
must be aligned properly, because the engine starts and runs
fine. Where should the alignment tab on the lower boot go?
A couple of photos of a properly installed one would be nice.
2) The throttle body was stuck in its bore. Upon loosening/cleaning things, I noticed the setscrew was not operational, so I adjusted it to the slightest stop. Kind of amazing that the thing never got stuck in 10 years of operation. Has anyone noticed this screw and tinkered with it?