No, I have not looked at Bentleys, but I work at a BMW dealer and I have one of the tech's do all my service on the car. He is willing to go back in a third time and see if he pre-loaded it correctly but not sure how you can tell for sure. And again I am wondering if I have damaged the center bearing by not pre-loading correctly since replacing it the 1st time 200 miles ago.
Per the suggested guibo installation idea; how could you do it wrong? I used new bolts and self locking nuts. Could the new centering sleeve I installed for the new guibo cause any problems?