right have today fixed leak as i hoped it was the union on top of fuel pump that was loose managed to do all of job from engine bay deck off, cross beam out, servo out, and oilcooler off,13/16 stubby spanner for pipe union and old stretched 1/2 witworth for union into pump , got about 1/8 turn on it ,leak no more!!! (no more people coming up to me at shows saying i can smell petrol! now got to grease the u/j underneath it looks a bit dry.