Thnx Steve & Blue
yep ive been all over the underside today checking pipes whilst she was clear off the ground on 4 axle stands and running i took her upto and held 3k for ages bringing the temp up and shut her off with no leaks , so i reckon your bang on Steve i thought this was but have been running her for 2 to 3 times now with the same resulting drips.
Going to do a long run this week and see what happens will post here the outcome