all three bolts sheared,
casing and sandwich plate WELDED together,
much pain with a lump hammer and various cautious chisels to split apart

mole gripped the remaining pins out
cleaned engine block surface,
and discovered a tone of crud inside the engine block under thermostat. Decided needed to flush radiator and water system out. Bought some rad clear kinda stuff.
However, I'm down with the whole hosepipe in the top of the radiator thing but after reading that the best way to drain the radiator/ system is to disconnect the bottom hose..
...how the bleedin do you get to it?
I can see the jubilee clip, but cant reach it, let alone the bottom hose?! I understand the long shank screwdriver to remove jubilee, but cant see how I can remove the pipe, or get it back on afterwards?!
Any help (particularly pics, because I'm not confident at this stuff) much appreciated. Thanks