Right,
I've managed to eradicate the rumbling/.knocking..... by doing 1 of 2 things....
1: Checked that the spigot ring was in the correct way round, which it wasn't. So I've corrected that.
2: Thought I'd see if the 'new' EBC discs had warped.... so when I had the wheel off, I rotated the disc and could hear it 'catching' as I turned it. I could also see a very small gap (0.1mm size) between the discs and pad, but as I rotated the disc, the gap dissappeared and reappeared as the disc turned a full 360'.
Now, I remember reading something on the 'instructions' that came with the discs, that basically said that if you get 'vibration' to remove the locating screw, and turn the disc round by 1 bolt hole.
So I've done that, and then checked that the 'gap' doesn't reappear/diappear.... which it now doesn't.
Has anyone else ever heard of having to do this with discs ?? Bill ??
Anyway, I've taken the car for a 10mile spin at various speeds etc, and not encountered the knocking etc. Will give it a couple of days to settle in and report back.
Andy
