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Another wobbly crank pulley. Another wobbly crank pulley.
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  #1  
Old 03-29-2021, 09:56 PM
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Unhappy Another wobbly crank pulley.
Seems like my crank pulley is on its way out. I've already replaced the tensioner and both idler pulleys but it made no difference. When idling the crank pulley rattles and the tensioner sometimes moves.

Is there any viable aftermarket or should go OEM?

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Old 03-29-2021, 09:58 PM
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Post exact part number I have a spare
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Old 03-29-2021, 10:02 PM
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It is 11237573655.

https://www.realoem.com/bmw/enUS/sho...diagId=11_4453

Thanks for the offer!
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Old 04-07-2021, 10:00 AM
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Replaced pulley with oem one. The rubber on the old was deteriorating and the inner ring was no longer in flush with the outer one.

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Old 04-24-2021, 11:48 AM
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Curious, did you notice any increased vibration, particularly at idle before replacement?

I have a 35d, but it seems to have more vibration at idle (Particularly in gear, stopped at light) than I remember it having when I bought it. I just past 100K miles, and thinking my crank pulley/dampener is on the way out as well..
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Old 04-24-2021, 12:39 PM
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It's usually engine mounts or CV axle that introduce that shake in drive at idle.
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Old 04-24-2021, 02:09 PM
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Quote:
Originally Posted by Best4x4xFAR View Post
Curious, did you notice any increased vibration, particularly at idle before replacement?

I have a 35d, but it seems to have more vibration at idle (Particularly in gear, stopped at light) than I remember it having when I bought it. I just past 100K miles, and thinking my crank pulley/dampener is on the way out as well..

While a dampener could cause that, on the m57 I would check the motor mounts.
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Old 04-24-2021, 04:17 PM
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Quote:
Originally Posted by andrewwynn View Post
It's usually engine mounts or CV axle that introduce that shake in drive at idle.
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Originally Posted by Mistercamp View Post
While a dampener could cause that, on the m57 I would check the motor mounts.
So these have active motor mounts that are vacuum controller, right? Already thinking I have some vacuum line or actuator issues, maybe they are related?
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Old 04-24-2021, 04:34 PM
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Yes, they are vacuum controlled. When I changed mine there was a little over 1" height difference from the mounts collapsing on the inside. This caused the vibration issues I was having at the time.
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Old 04-24-2021, 04:47 PM
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