Quote:
Originally Posted by rrgrassi
Check the emergency brake and the calipers for dragging. Light rasping sounds are usually quite normal since the brake pads do drag a bit. Disk brakes are not self energizing like drum brakes. Also check the rotors for run out. Any slight warping can cause the rasping sound also.
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As I reported earlier in this thread (or perhaps in the original "stuck-rotor" one), I did try a few days ago with tires, calipers and rotors off, and even in that case there was more or less the same amount of resistance and the same rasping sound... The rotors were measured with a caliper and are within specs. At the same time, the parking brake drums were checked and the adjusting starwheels adjusted so that it was evident the drums did not drag. After all that, with calipers and rotors still off, there was that type of resistance when rotating the hubs and the same rasping sound when rotating them slowly... Though this sound happens only when rotating the hubs SLOWLY (when rotating them faster, you can't hear anything. Also, when driving the car, I can't hear any noise from the wheels). I have been doing all this sort of testing cold, on a car that has been parked overnight, if that might help knowing.
Well, there is something about this type of uneven resistance and sound that makes me uneasy... though the values I measured this morning are within those reported by BioBenz240D... Maybe it is just me to be a bit overconcerned (in another forum I no longer participate in, I was told that, because of these symptoms, I was to be very concerned...)
If all this sounds good to you guys, I'd like you to confirm that what I've described so far is to be considered normal for my car... in that case, I'll go about driving the car as is.
If not, I would appreciate very much your advice as to what I should do at this point.
Thank you so much...