Ok, having looked at the wheels and rotors enough now I see that the
rotor being loose on the right is perfectly ok. And having taking it
apart and put it all back together a few times, I'm happy that all is
as it should be.

My first attempt at doing so and then driving resulted in a jangling
noise every time I hit a bump on the right front wheel. Taking the
wheel off (again) I discovered I hadn't put the wheel nut dust cover on
properly and it had popped off. Now I'm not hearing any noises to be
worried about (well, ok, my lifters ticking are a different story and
for another post).

Thanks for helping me to see how the rotors and wheels are supposed to
be help together.

KWS wrote:
> Pat,
>
> I think that Mark:
>
> 1. Doesn't understand that the rotor is actually held in place by
> compression of the lug nuts against the wheel against the rotor. You
> explained this very well.
>
> 2. Thinks that his left rotor, which is probably frozen in place by
> rust, is "firmly fixed", which it isn't and the right rotor, because it
> is "movable", has something wrong with it, which it doesn't.
>
> In fact: the right rotor is behaving normally and he needs to whack the
> left rotor with a rubber mallet to free it, should it need turning or
> replacement.
>
> Please tell us more about your particular noise, Mark.
>
> Ken
>
> pws wrote: