FYI - A new expansion tank is �40 (or whatever that is in Rand) from a dealer.

Yeah I know what you mean about the expansion tank screws. I actaully was there when my mechanic put the cover back on and told him that they were different lengths. He then proceeded to put the long one in and as it had got tight proceeded to tighten it and in doing so punched through to the coolant. What a dick. He also put the wrong oil in which neccessitated a new friction clutch pack.:094:
Needless to say I did the clutch myself along with the oil change and put some real good silicone down the punched through hole and sealed it. It is not under pressure and I keep an eye on it but it looks OK and has done several thousand miles since.
I do all my own work now. (which I could in any case but I was busy at the time.)

Steve