thanks for replies peeps, tried all possible shop and mechanic wise options with no joy for a quick fix.
 Tried the dreaded stud extractor, but no joy,more chance of snapping that to.
 I resorted to a last ditch plan, drill the whole lot out and fit helicoils and replace all tree suds.
 Just managed to get a kit of the right size. 
 By 2.00pm today all three replaced, job sorted and really strong too, and done in situ & working upside down.
 Looking good for popham now,  




 touch wood all else will be fine. 
 thanks all for info.
 Red..