Alternator Brush Question…

Joined
Oct 13, 2003
Messages
184
Mudders,

Just pulled the non functional alternator off my 2006 Hundy assuming is was time for brushes. (120K miles, original part)

The question I have is in the armature area of the alternator.

The brush assembly would not lift off because the lower brush was riding in a fairly deep groove.

Is this groove excessive wear or are they designed this way?

(I’m assuming excessive wear and have a rebuilt alternator coming in but would rather just put brushes in this one…)

It’s a nicely machined grooved with a bevel lead in… The bevel makes me think it could be factory as the outside of the brush is still sharp.

Thoughts??!

16974FFE-F0BC-44AA-A76C-BAA24EDBA112.jpeg
 
Joined
Sep 9, 2016
Messages
2,120
Location
Odessa/Midland TX
It is worn. Should look like the other. 120K miles? I cannot believe it. Mine is at 250K mines and it looks like the top contact point on your alternator. I have several toyotas and non even at 280K moles show that much of wear. I replace only the brushes with an oem kit.


If you take the commutstor to a machine shop, they should be able to insert a new sleeve for it. Basically both will get new sleeves.
 

JunkCrzr89

Competent Ignoramoose
Joined
Jul 21, 2019
Messages
4,671
Location
Colorado
I agree with @nissanh - that is very worn. Mine did not look like that when I rebuilt the alternator.
 

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