I was going to do this, but my 18" adjustable is gone. Probably at the boys place.I use an adjustable wrench to break the nut loose 1/4 turn then install the compressor/bell housing and the nut spins off by hand.
that's a great idea guys, I will do it next time I take it apartHa, I did the same Paul...lol
I used a flapper wheel inside the bell to open it up a little.
I usually have a slight misalignment and the nuts corners dig into the bell, so I just knocked of the sharp edge with the flapper wheel too......lol