Ok all thanks
I think I have indeed found it,
Firs,t off sorry
1967 plus 4 with a TR4 engine.
Ok I believe it’s the pulley on the water pump just knocking on the pump itself and with the metal blades of the fan it’s like a damn bell.
Now the solution is to take the whole thing apart again and see if I can put a washer in between the pulley and housing plus change the metal fan to plastic.
Comments are again welcome, as I really wanted to avoid taking the whole front and radiator off again, but it is what it is.