EMAX motor Question

I noticed some Vertical movement in my EMAX Red Bottom motors RS2205 2300kv.

Is it time to change them out or can I keep them for a while?

Have you checked that the c-clip on the bottom of the motor is still there? Maybe that has come loose/ is missing?

That was the first think I checked Alex.
Its still there, looks to be in the right place and doesn’t move when I pull at the bell.
Still rotates round when I move the bell round.