Two silver car alternators on concrete, one showing pulley, one…

While the alternators were apart, I sandblasted & painted their cases & pulleys. Then I wire-brushed all the grounding points down to bare Aluminum inside & outside, including the rectifier, and the rotor shafts. Now they're back together ready for testing (on the truck, later).

These are identifiable as 130A alternators both by the large cases (very little webbing between the case & the bolt tubes) and by the pair of vent holes between each pair of front ribs. A 95A 3G has 4 holes there.

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Owner caption April 2015 · Photo 257 of 434