My 5 speed manual Honda bought new has 272K miles on it. Recently drove it to Florida where it performed excellent. On the way home it started making a constant droning, maybe a mild grinding in the drivetrain left front.
Before I took it apart, I jacked up the left front and ran it in gear, It was fairly noisy and I used a pipe to listen to the hub, and the cv joints. It seemed to be inboard and the cv joint was tight, boots intact. There was a little play in the intermediate shaft bearing so I replaced that.
It was quiet when I test ran with the cv shaft disconnected, but some noise once I installed the cv shaft. I took it out, took the boots off and inspected for wear. On the inner, I could only find one small area of pitting on the tulip cup where the tri bearings ride. The bearings are smooth and the there is no play in any of the shaft. I'm afraid if I replace the shaft the noise will still be there.
I'm wondering if there is a bad bearing on the diff carrier that doesn't make noise without the cv shaft connected. When the shaft is connected turning the joints and rotor adds enough drag to make the bearing make noise. I'm going to try turning the intermediate shaft and seeing if the diff turns smooth. The trans has had regular changes with Honda MTF and has Redline MTF in it now.
Any ideas? Can cv shafts make noise without any apparent wear? The noise is constant and doesn't depend on turning or accel or decel.
Before I took it apart, I jacked up the left front and ran it in gear, It was fairly noisy and I used a pipe to listen to the hub, and the cv joints. It seemed to be inboard and the cv joint was tight, boots intact. There was a little play in the intermediate shaft bearing so I replaced that.
It was quiet when I test ran with the cv shaft disconnected, but some noise once I installed the cv shaft. I took it out, took the boots off and inspected for wear. On the inner, I could only find one small area of pitting on the tulip cup where the tri bearings ride. The bearings are smooth and the there is no play in any of the shaft. I'm afraid if I replace the shaft the noise will still be there.
I'm wondering if there is a bad bearing on the diff carrier that doesn't make noise without the cv shaft connected. When the shaft is connected turning the joints and rotor adds enough drag to make the bearing make noise. I'm going to try turning the intermediate shaft and seeing if the diff turns smooth. The trans has had regular changes with Honda MTF and has Redline MTF in it now.
Any ideas? Can cv shafts make noise without any apparent wear? The noise is constant and doesn't depend on turning or accel or decel.