Hello,
I have a problem with my e36 320i M52b20, so ever since I bought the car, there is a whining noise coming from the transmission when the clutch is engadged. However when the clutch pedal is pressed to the floor the whining stops.
It is not the throw-out bearing because I replaced it and the noise persisted. My guess is the pilotbearing as it is the only one I can think of.
Any other suggestions on what might be causing this noise?
Pilot bearing. Roommate has a bad pilot bearing. It sounds like it has a whimsy supercharger
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11/85 635csi auto
yep sounds exactly like that. do you think its worth spending another 8 hours replacing the bearing? Should I replace it or can I drive like this for another month or so?
My roommate been driving it like that for a while now. Probably 5 months. He has a "loud stereo in his bmw"(whoopty f-ing doo), so he really doesn't hear it. He's not a bmw enthusiast, just likes to own one.
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11/85 635csi auto
The only time the pilot bearing actually does work is when the engine is running, the transmission is in gear and the clutch pedal is depressed (clutch disengaged). This means the transmission input shaft is stationary and the pilot is now working between the input shaft and the crankshaft/flywheel. If the engine is running, clutch disengaged and transmission in neutral the the bearing MAY turn just by the slipping motion of the clutch plate but no real load on the bearing. If you're traveling down the road in gear then the bearing is NOT turning (no load ). You never mentioned testing in or out of gear but it sounds more like a worn input shaft bearing.
See ya later,
tony
'98 M3, '92 Dinan3, '05 R1100S BCR, '07 R1200S, Aprilia T
Uhmm I think you just contradicted yourself, first you said that the pilot is working when the transmission is in gear with clutch depressed, then you say when I drive down the road the pilot is not spinning? but the two situations are one and the same no?
To be clear, the noise occurs as soon as I let the foot of the clutch pedal, doesn't matter if I am in neutral or in gear and driving.
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Lol thats also a solution, Ill just buy a better stereo instead of a pilot.
No contradiction.
Any time the clutch is engaged (pedal up, no feet) the crankshaft, flywheel, clutch, pressure plate and input shaft are spinning at engine RPM and the pilot bearing is not in play (other than just a locator) and there is no movement at the pilot bearing. The pilot bearing only works when the engine is running, the clutch is disengaged and the transmission is in gear, moving or not.
See ya later,
tony
'98 M3, '92 Dinan3, '05 R1100S BCR, '07 R1200S, Aprilia T
A very simple decison: if the part in question is available as single part with a part number, you can order it and replace it, not a complete transmission, use your VIN and find the p/n http://www.realoem.com/bmw/enUS/select
Get a Bentley Repair Manual for the E36, if you want to DIY.
Shogun tricks and tips for the E32 series are HERE!
This is not a 100% diagnosis, only a more likely scenario assuming there's no additional problems. Someone with driveline and transmission experience needs to listen to the noises while actually in the car.
I'd be the first to say that RDP (Remote Diagnostical Procedure) doesn't always work.
See ya later,
tony
'98 M3, '92 Dinan3, '05 R1100S BCR, '07 R1200S, Aprilia T
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