So when you pull it down you don't touch the LIM right? Did you use Pipe dope or Teflon tape on the block offs for the TB? Do they sit below flush? when you removed the SC was there coolant where the TB is? My only thought is that with the IC in place the holes are lined up with the block off hex screws and if they are not below flush they may be pushing on the IC adapter and making it harder to seal but the block off seal screws would have to leak. Use your vacuum pump and one of the cups to pull a vacuum on each of the block offs. Other than that I'm out of ideas right now.
Jeff
