Alternator Bearing - Toyota Yaris Forums

barryware · 12-02-2011, 11:51 AM

I have searched the forum and found information in regards to corroded terminals and failing voltage regulators but nothing about replacing the front bearing on the alternator (2007 USA LB).

Has anyone replaced only the front bearing? Is the bearing pressed onto the stator shaft.. Are special tools required? Is the pulley keyed to the shaft or is it a taper lock?

Any info available on a source for the bearing? It seems the days of going to the auto parts store and getting just a bearing are over.

The alternator is fine electrically.. Just started making one heck of a racket.

I don't want to tear it down for inspection (how it is put together) without having the parts to put it back together.

In the past, I have been able to just re-pack a bearing (no replacement) like you would do with the traditional wheel bearings and it was fine. Not sure what type of bearing is used in the alternator.

12-02-2011, 11:51 AM	#1
barryware Drives: 2007 Yaris Liftback Join Date: Sep 2006 Location: Chicago Posts: 129	Alternator Bearing I have searched the forum and found information in regards to corroded terminals and failing voltage regulators but nothing about replacing the front bearing on the alternator (2007 USA LB). Has anyone replaced only the front bearing? Is the bearing pressed onto the stator shaft.. Are special tools required? Is the pulley keyed to the shaft or is it a taper lock? Any info available on a source for the bearing? It seems the days of going to the auto parts store and getting just a bearing are over. The alternator is fine electrically.. Just started making one heck of a racket. I don't want to tear it down for inspection (how it is put together) without having the parts to put it back together. In the past, I have been able to just re-pack a bearing (no replacement) like you would do with the traditional wheel bearings and it was fine. Not sure what type of bearing is used in the alternator.