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.

Replaced rod bearings and now crank won't turn

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  #26  
Old 09-26-2017, 04:17 AM
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those bolts are torque to yield and should not be reused
 
  #27  
Old 09-26-2017, 10:12 AM
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Originally Posted by 1qwkmini
You may want to order new rod bolts and have a really good look when you fit the new bearings...plasti gauge may or may not help.
You may have distorted the rod journal or stretched the rod bolts when you torqued them with the thicker bearings...be careful!!
Only removing the rod/piston and using a bore gauge will tell you if you have distorted the journal.

BTW...no offense meant by the "patch job" but it has been know to happen!! People then sell the car on to the next guy.
Thank you for all your advice, Im aware of the rod bolts I got new ones for every set of bearings, they're only $4 from mini. I'll post how it goes, Ill plastigauge this time around !
 
  #28  
Old 09-29-2017, 12:13 PM
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Originally Posted by 1qwkmini
You may want to order new rod bolts and have a really good look when you fit the new bearings...plasti gauge may or may not help.
You may have distorted the rod journal or stretched the rod bolts when you torqued them with the thicker bearings...be careful!!
Only removing the rod/piston and using a bore gauge will tell you if you have distorted the journal.

BTW...no offense meant by the "patch job" but it has been know to happen!! People then sell the car on to the next guy.
 




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