This past summer, after a few hours of highway driving then going through local small town traffic, I would get a squealing noise at the point of clutch engagement. No noise with the pedal fully up or fully down.
Also, in past winters, when I first started out of my driveway (a sharp left turn), I would get a brief squeal that I thought was the differential "posi-traction" not warmed up.
The clutch was replaced 50 kmi /14 yr ago, by a local dealer, all Acura OEM parts. Despite having no clutch slip but facing a long drive to NSXPO in the Fall, I decided to pull the transaxle and examine the clutch. The discs were less than half worn, and the pressure plates were better than new spec for warp with no measurable wear. The release bearing was very smooth and so I thought it was OK. In all my previous experiences (non-Honda) failed release bearings would be noisy and felt like there was gravel inside when spinning them. With all the work getting to it, I ordered a new release bearing and, at the advice of Larry B, new discs.
The new release bearing was much easier to spin than the old one. Without any attempt at measurement, at least 4 times easier. So apparently, the squeal was the bearing slipping against the pressure plate fingers at the moment of release.
Net result: Both the hot weather and cold weather squeals are completely gone. But that was a lot of work to replace one bearing!
Perhaps this will help someone else who might encounter the same mysterious squeals.
Also, in past winters, when I first started out of my driveway (a sharp left turn), I would get a brief squeal that I thought was the differential "posi-traction" not warmed up.
The clutch was replaced 50 kmi /14 yr ago, by a local dealer, all Acura OEM parts. Despite having no clutch slip but facing a long drive to NSXPO in the Fall, I decided to pull the transaxle and examine the clutch. The discs were less than half worn, and the pressure plates were better than new spec for warp with no measurable wear. The release bearing was very smooth and so I thought it was OK. In all my previous experiences (non-Honda) failed release bearings would be noisy and felt like there was gravel inside when spinning them. With all the work getting to it, I ordered a new release bearing and, at the advice of Larry B, new discs.
The new release bearing was much easier to spin than the old one. Without any attempt at measurement, at least 4 times easier. So apparently, the squeal was the bearing slipping against the pressure plate fingers at the moment of release.
Net result: Both the hot weather and cold weather squeals are completely gone. But that was a lot of work to replace one bearing!
Perhaps this will help someone else who might encounter the same mysterious squeals.
