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      09-23-2020, 08:57 PM   #12
Davisca455
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Drives: 2008 M3
Join Date: Oct 2012
Location: Davis, California

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Quote:
Originally Posted by LKN624 View Post
Thanks for the research but it seems as though...that 40Nm (I just guessed), might be too tight. I am getting a HORRIBLE vibration from the engine which I can feel through the entire car at idle and also when you rev the engine up. Perhaps it might be less?
The only thing touching the inner race of the bearing is the machined shoulder of the aluminum arm and the head of the bolt.
And the inner race of the bearing looks to be a pretty substantial hardened steel single piece unit?
I hope that isn't so much torque that it could cause the pulley to start seizing its bearing.