Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.

Torque spec for vibration damper mount

Old Jun 10, 2022 | 05:00 PM
  #1  
ptkacik's Avatar
ptkacik
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Torque spec for vibration damper mount

What are the torque specs for the vibration damper (upper motor mount)?

I just replaced my vibration damper on my 2005 Mini and the Bentley manual said 74 ft*lb for the engine bracket to motor mount bolt and 74 ft*lb for the motor mount to frame bolt.

However, despite it going from the mount to the frame, the lower TORX M10 x 110 bolt will not go to 74 ft*lb (65 max) and I may have damaged the motor mount. The Bentley manual should have had three torque specs.

I do not subscribe to the German “GutenTight” or Russian “Brokenov” free hand tightening and would like to do this to the spec.

Thank you,
Peter
 
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Old Jun 11, 2022 | 08:17 AM
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Daftlad's Avatar
Daftlad
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From: Under the car. As per normal.
.
 

Last edited by Daftlad; Jun 12, 2022 at 10:42 AM.
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Old Jun 12, 2022 | 10:28 AM
  #3  
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Per the Mini factory repair manual:
Bolts holding the bracket to the motor - 66Nm (48.7 lb-ft)
Nut holding engine bracket to motor mount - 68 Nm (50lb-ft)
Bolt holding motor mount to chassis - This is a torque-to-yield bolt and MUST be replaced every time (which is why you're having problems with it). It should be pre-torqued 56 Nm (41.3 lb-ft) and then tightened an additional 90° of rotation.

For the "dogbone" bracket that sits on top of all this, the two bolts are 100Nm (74 lb-ft).
 
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