cheers for the help guys! from that i can gather the turbo should be fine, so thats a hugh releif. I dont suppose a very low battery could cause the amal valve clicking could it? reason i ask this is because im sure it wasnt doing it before yesterday, and i had to jump the car to get it started this time, and then removed the jump leads straight after, the interior light was very dim so very low power. I will check the turbo damper, i think i will remove it temporarily, just to run it and minimise the possibility of that causing the noise.
With regard to the detonation issue, if it is this i dont have this equipment at hand, im trying to get the fuelling close, then will have the pressure set when i get the cars mot, as i know the guy who will be doing it has a deasent gauge.