Hi Fanatic, thanks for your reply
I havent had the carbs checked as yet, the problem being trust in the mechanics and the time it takes them! I guess i was asking about the EGR valve as its an easier fix which might resolve the problem (i was trying to upload a photo of the engine but the gallery wont accept the jpeg! will keep trying)
It looks like i will need to head to the cities where there are mechanics with more knowledge of landrovers!
To my knowlege there is no egr valve on any carb v8 rover there are workshop manuals that can be found for both the su or zenith carbs on line- until you check the carbs it will be a waste of time anything else.
Again the possible things are
Choke mechanism sticking,wrong float height,damaged float etc