Well job done
!!
If anyone has ever wondered... it is possible to get the adjuster rod and the bracket off the back of the tensioner casting without removing the whole tensioner. I decided to do this as I was having trouble getting the fan pulley off (corroded on) so took a shortcut. The tensioner looks to be in good condition so I am happy with it's state. So it is all done, back together and as good as new.
I am a happy man!
More importantly, my wife is happy to have her car back
Thanks for your help all!
Daz