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Re: Clutch noise and possibly related whining nois (archive)

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Posted by Jeff N. on February 27, 2000 at 02:46:11:

In Reply to: Clutch noise and possibly related whining noise posted by Ben on February 27, 2000 at 00:48:35:

Well... the clutch noise sounds like a throwout bearing. A $40 part that only requires that you take out the transmission to replace it. Mine went out too.

The "latest" problem with your 535i. Hmmm...that doesn't sound good at all.

Good luck,

90 535iM sharked also

: Okay, here's my latest problem (1990 535iM):

: 1) When I press the clutch in (either from neutral to engage a gear, upshift, or downshift; basically ANYTIME the clutch is in), it makes a weird noise. The noise reminds me of the sound you hear when a pebble is lodged in between your brake pad and rotor. It's not a screeching sound, but a very soft sound like the one you'd get if you were using a brush to apply cooking oil in a circular motion on the surface of a wok or saucepan. The sound is definitely "orbital" in nature, meaning that the sound seems to oscillate, BUT it does NOT seem to increase or decrease with engine speed. The sound "wobbles" at the same rate no matter what the engine speed! I can reproduce the sound 100% of the time on demand, parked in neutral or while driving.

: There have been no recent incidents that I think could have caused this, except for the fact that the car has not been driven for the past few months (sitting in a garage) and I have only started driving it again this past Friday. It was not making this noise on Friday however. The clutch cylinders were all replaced within 2 years ago, but I have no idea how old the other clutch components are. Besides the noise, the clutch works great and does not feel any different than before--it engages at the same point of pedal travel and requires the same amount of pressure.

: 2) When my car is cruising between 1000 and 2500 RPM, a high pitched whining noise occurs continuously, unless I am accelerating beyond 2500 RPM, or coming to a complete stop and have slowed to below 1000 RPM. However, it might happen for a few brief seconds when parked at idle (in neutral). This sound started happening when the car was parked and idling while I was topping up some coolant. The sound is definitely NOT belt squeal or the waterpump dying, and seems to originate from somewhere toward the center or back of the engine compartment

: Now here's the interesting thing that might tie the two sounds together. If I press the clutch in to shift while the whining noise is occurring, it will momentarily stop as long as I am feathering the clutch and throttle. Then the sound returns when I release the clutch. This sound does not seem to occur at the same time as the clutch whirring, but is it just coincidence that BOTH sounds appeared on the same day and are affected by clutch engagement?

: Please help! All comments and opinions are welcome!

: Ben
: 90 535iM, sharked

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