PLEASE HELP!! Alternator not turning

Please help! I bought 2 swap meet alternators that turned fine but the bearings were shot. Fine. I thought while I was at it, I would put Speedways Chrome Kits on these (an internally regulated and externally regulated model).

I have done many of these in the past, however, these 2 are throwing me for a loop. I took many pictures and put them back together like I always do, including holding the springs and brushes back when installing the rotor.

Both of these are very tight to turn. I obviously installed new bearings both front and back.

What gives??

Any help is welcome.
Vern

 

The first thing that comes to mind is the fan behind the pulley. Did you remember to install the spacer behind it before you tightened the nut? If not that, some pictures would be a huge help. Sometimes other folks can "see" what you cannot...

 

Both have the original spacer installed behind the pulley. I took 1 apart at a time so there was no "cross-contamination" if you will. It is difficult to spin without the pulley or fan ***embly.

I will post some pics tomorrow.

 

bttt for the night crew

 

The only thing I can think of is the chrome plating has added more thickness on both the inside and outside of the case,,

Take the alternator apart and remove excess chrome where the spacer fits. HRP

 

Take the bolts out of the case to loosen the two halfs does it turn free now may be rear bearing in to far?

 

Fixed the externally regulated model. I forgot the spacer between the rotor and the bearing on the inside. I had the spacer on the outside. When I would tighten it, the case would deflect and lock up the alternator. Kinda feel like a dumb***.

The internally regulated one is still giving me fits. I am going to sandblast the original housing and rebuild the ***embly in that case. Right now, I think the chrome case may be some of the culprit.