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[Big C.]

  I just did a cam chest set up in my new replacement motor and noticed two screws sitting on either side of the crank carrier bearing that wasn't on my original motor.  What was the reason for this update?
                                    Cory  

[Big C.]

  Heres the 09 motor.

[Big C.]

 And here is the 2012 replacement motor with the set screws on either side of the carrier bearing.

[justaguy]

The two screws were added on all big twins starting in 2011 to prevent bearing movement.

[grc]

Yup, don't want those bearings walking out of the cases.  Not exactly sure why that wasn't a big problem on the '99 through '06 models but became necessary on the late models.


Jerry

[sadunbar]

Yup, don't want those bearings walking out of the cases.  Not exactly sure why that wasn't a big problem on the '99 through '06 models but became necessary on the late models.


Jerry

Maybe preventative protection to counter those wobbly crankshafts....   

(although I can't see them paying for two drilled and tapped holes for no reason)

[Big C.]

Maybe preventative protection to counter those wobbly crankshafts....   

(although I can't see them paying for two drilled and tapped holes for no reason)

 Jerry I would have to agree with you 100% their.  cheap fix for poor QC
                                                 Cory 

[Big C.]

  And thanks every one for the 411
                  Cory