Alternator Basics

Carl · Post by **Carl** » Mon Jun 12, 2006 5:20 pm

I just pulled the alternator from my '79 to check the brushes. They need replacing. Any other parts I should examine and possibly replace? Bike has 29K on the clock...

broook · Post by **broook** » Mon Jun 12, 2006 9:22 pm

If I were you I would replace the bearings. They are pretty cheap to buy and you can pick them up in any bearing shop.

Robert Hill · Post by **Robert Hill** » Wed Jun 14, 2006 12:31 pm

I agree. A fw years ago, my friend Steve was having charging troubles with his 82. He bought brushes at my behest and brought them to my place to install. When we got it apart we found it was not the brushes, the bearings had dis-integrated. He bought new ones from a bearing shop, installed them and the new brushes, and all was good.

Me myself I istalled the CBXMAN alternator conversion kit. No more brushes or bearings or clutches to worry about.

Robert Hill

Oklahoma City

Carl · Post by **Carl** » Thu Jun 22, 2006 6:14 am

Picked up the new bearings. What do I have to do to replace the inner bearing? Manual is not clear as to proper sequence...

broook · Post by **broook** » Thu Jun 22, 2006 7:48 am

If you can`t get a blind bearing puller you can grind the head of a bolt so that it "just" fits through the bearing center hole then let the shoulder of the bolt catch the bearing inside. Drill a hole in a piece of flat bar and let the threads of the bolt go through then draw the bearing out by tightening the nut. You can also try heating it in the oven then dropping it on a flat surface. I can`t do that with mine because it is chromed. I also heared that you can leave it in the hot sun and the bearing will drop out but I have never tried it that way.

Dave Ditner · Post by **Dave Ditner** » Wed Aug 23, 2006 9:09 pm

Heat gun works. Heat the case, then thump it on a piece of wood. This is for the outer bearing with the alternator viewed in the installed position. For the inner bearing, remove the hex nut holding the outer clutch plate to the shaft, tap the shaft out of the bearing then remove the bearing from the case. Replace the seal when you're in there. I believe it's still available from Honda.