Flywheel Torque Specifications needed

2011 BMW 550I
97,000 MILES • 4.4L • V8 • TURBO • 2WD • AUTOMATIC
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BMW 550I
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Hi,

I have purchased a remanufactured N63B44A engine from BMW, and I will reuse the flywheel from my original engine. I have purchased new fasteners for the flywheel since the original fasteners are considered 1 used bolts according to BMW. Can you please provide the torque specification/value for the fasteners and any other pro tip/s I need to be successful?
Jun 21, 2022 at 5:31 AM
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SQM
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Hello,

Those bolts need to be torqued at 105 Nm or about 77.5 ft lbs.
Be sure to clean out the screw threads that are in the crankshaft, before installing the new screws.

I have attached the procedure below for your reference.

Let me know of any questions.
Thank you.

https://www.2carpros.com/articles/how-flexplates-work
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Jun 21, 2022 at 3:22 PM
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BMW 550I
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Thank you, Sean, for the details. Also, the article defining flywheel vs flex plate is helpful. I have a flex. Thanks for the clarity.
Jun 21, 2022 at 5:35 PM
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SQM
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You are welcome.
Yes, automatic transmissions have flex plate.

Thank you for using 2CarPros.
Jun 21, 2022 at 8:00 PM