Just completed, successfully, the replacement of the rear main seal. It shows no sign of leakage with the few times I have started the engine and let it idle for 20-30 minutes. Before I would certainly see oil trails coming down by the trans dust cover. I got a ton of advice from the "Official Rear main seal replacement" thread here. I had some issues with oil leakage at front and right side of oil pan and let it ride until I did the rear seal. Again, I went back to the oil pan threads and got great advice to put new gaskets and seal leaks. I also changed to a new 6 qt. hemi pan from 440 source. I was left with one persistent leak at the right forward bolt on the pan. Again, the great advice from this thread lead me to question the chain cover which I replaced last spring when I did a cam change. It was my 3rd attempt at gasket change that lead me to this only leak. It is a new Mahle that I installed dry except to rtv the 4 joints and I have only 50 in/pds. torque. 3 steps of 20,40, then 50 i/p. the photo shows how much space is left between top of gasket and bottom of chain cover. My question: What is the minimum amount of disassembly I need to do to get chain cover loose to adjust it. Thanks in advance.