Well in a nut shell its in need of a rebuild. Big end on 4 gone and piston on 4 slappin I don'nt no which caused which but I am pretty sure the noise is the piston. I was advised by helpfull chap at Bradford engine units on Friday over the Phone that it would be this so its off to them for a rebuild I have been quoted £800 which seems very reasonable considering the price of a second hand lump and it comes with a warranty I priced up the bits to rebuild myself but by by the time you add machining costs there is not a huge saving.
On the bright side the cash we got off the asking price and the sale off the children oops I mean roof rack that it came with will more than fund it and i will have a reliable engine that can get us to cornwall and back for the jollies!
So in conclusion if you have a noise like a tappet and it isnt, have as many people as you can have a listen to it including a landrover mechanic, a diesel type expert, 2 engine reconditioners who all agreed with me that it definately was not a bottom end noise then remember above all else its a land rover it will be the one thing your sure its not and that it will be the most time consuming and expensive thing to fix Aaaaaaaaaaaaaaaaaaagggggggggggggghhhhhh you gotta love em. ( from the list of advisors I should have mentioned I am currently a house wife because being a mechanic doesn'nt pay enough for child care:-)
Thanks for all advice given Icky (feeling a bit red faced)