As posted elsewhere I have been trying to sort my son's car which has an annoying "rumble". I can't seem to isolate it to a particular side.
Last week I noted that the nearside hub nut was loose and there was obvious play in the hub with the wheel on the ground - not sure how long its been like this. I temporarily tightened the hub nub and the rumbling was more constant.
This weekend I've swapped the hub with one from a scrappy. The reason being that my son works away from home and I wasn't going to be able to get a new bearing pressed in on a weekend. Anyway I've swapped the whole hub with the one from the scrappy (bearing ran smooth) and the rumbling remains, quietens on braking as it did before. What I have noted now is mild "warped disk" type symptoms...I've replaced them twice in 2 years. I've also checked the bearing movement on the "old" hub and that seems equally smooth.
I might be wrong but I'm wondering if the disk has been distorted whilst the hub nut was loose on the original hub?...ie the disk was firmly on the outer hub, but the caliper is on the inner hub carrier and with the hub being loose there was movement...Any thoughts?