I am experiencing a squealing noise like a bearing going when the clutch pedal is released. It happens in neutral or in gear. When I depress the clutch, the noise goes away. So this is the opposite of the traditional throwout bearing noise. The noise is definitely coming from the clutch area. The frequency increases with engine rpm. I only hear it at low speeds or idle because I think I have one of the world's loudest mud tires (Ironman).
- This is a new clutch and transmission. It is an H55 and was swapped about 2008 by a PO. The H55 was bought new.
- The clutch inspection cover is in place and the rubber is there.
- The clutch fork boot is old and rotten and letting plenty of water, mud, etc in there.
- I have done a few water/mud crossings in the past year
- There is some squeaking in the clutch pedal when it is pressed and released, I understand that is due to lack of lubrication in the clutch fork movement contact areas.
- Pilot Bearing: Since the noise completely goes away when the pedal is depressed, and occurs in gear, it seems this is not it.
- Throwout/Release bearing: I have no pedal vibration, and the pedal is not stiff. This is only known to make a noise when the clutch pedal is depressed (opposite of my problem), so it seems unlikely this is it.
- Transmission input shaft bearing: Since the problem occurs in neutral, when this shaft is not spinning, I don’t see how this is the cause either.