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Reply to "Lionel 671 Turbine Woes"

You sound very frustrated, and overwhelmed but the motor can be fixed.  I find it one of the easiest to rebuild.  First off, 20 ball bearings are actually more than you need.  Typically you only need 6-8 on each end.  Did you remove the shims on each end of the armature?  There are shims of different thickness to take up the front to back play.  Instead of the individual ball beatings, I use part #681-121, which is 5 bearings inside a bearing race.  You will probably have to play with the shims, removing one, and see if the shaft has enough to put the c-clip on.  If the inside bearing races have been damaged, you will most likely have to replace them, which is very tricky.  

 

The running problem sounds like the armature gear isn't meshing properly with the worm gear.  You may have to place a shim under the motor to push the front of the motor farther down, for better contact with the worm gear.  

 

Are re you sure the shaft bearings were damaged?  Only curious as to how.

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