I have heard about on-car lathes for resurfacing brake rotors on American-built cars such as GM and Ford.
Does anyone know if there is a lathe that can also be used on VWs? Do you know of a shop in Madison or Milwaukee, WI that can do this job?
A brief explanation of my problem; I have a 1995 Passat GLX VR6 that appears to have a slightly bent front spindle. I have replaced or turned the rotors a few times and a pulsation returns after a few weeks. I dial indicator shows me .009in of axial runout on the (new) rotor. Another symptom is that this wheel consistently runs 5 to 10 deg F hotter than the other wheel. I have estimated that the runout must be wearing flat or low spots into the rotor and the resulting thickness variation is what causes the terrible 'warped rotor' feel.
btw, the 'Good' side rotor has only .001in axial runout which I think must be quite good.
I have tried using shims to correct the runout but this did not work at least on the first try. I am going to try with shims again this weekend but I think my chance of getting close to .001 runout is low. I am quite confident that if the rotor could be turned without removing it from the spindle then everything should be golden.
appreciate any help!
Mark
1995 Passat GLX VR6 (165k miles)