Jbweld won't work I cranked mine the Same as you an all I did was put. Black silicon on it. The max oil. Resistant one. An it works fine for me along as the bolt still screws in you good no leaks been having it like that for 6+ Mounts
Those cases are crap, They crack around the mounting points on pretty much every honda I've ever seen, They never seem to break somehow but they all crack...
How long did you let it set with the Hondabond before filling it? Do what Ftwlsv recommended. Just let it set and fully cure for hours (maybe over night) before filling it up.
I never put more fluid in it i used the honda bond drove it around the block right away checked under the car and i saw it dripping still. Its sitting right now with jb weld on it now havent drove it yet