Cole -----
here is how I got my H1C apart without breaking it too bad
Get three 5/16 sized coupler nuts and 3 matching bolts (about 3/4 inch long)
Grind the lettering off the bolt heads so they are smooth. put some antiseise on the threads and screw them into the nuts
all the way in. Insert the nut/bolt combo in the space in between the two housings. do all 3 at 120 degree angles as best you can. These things will form little miniature railroad jacks. screw them out until they touch. Then tuen them out in unison -
about 1/4 turn at a time. keep them syncronised- so as to NOT TIP the housing and let the housing touch the blade tops.
You can rap on the core a little as you go to encourage movement. With all 3 of those expanding- it cant help but move.....
Once its off you can clean the joint and use copper anti-seise on re-assy.
Hope that helps- I was not at ease with beating the crap out of cast housings with very tight tip clearances !
(but that's just me .....
Tim