DIY Alternator Rebuild? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 01-06-2016
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DIY Alternator Rebuild?

I picked up a used alt at a junk yard 6 months ago. My question... Since I have the old alt can I rebuild it myself? I've looked but I can't seem to find a rebuild kit at the box stores. Anyone have any sources or info? The bearings are all good. It just quit charging when the motor was at anything over 1500 rpms.
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Old 01-06-2016
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I'd tear it down and inspect/test the Stator, field, commutator rings, and rectifier Bridge. If there in good condition, a simple clean-up of the commutator rings (with the proper glass bead sand paper) and a new set of brushes/voltage regulator should do it. If the vehicle has mileage, I'd also recommend new bearings.

The brush/regulator and bearings should be stocked at most auto parts houses. The rest might be special order or dealer only.
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Old 01-07-2016
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Sounds like a plan. This will be my first rebuild of an alt. But I'm fairly mechanically inclined and have an electronics background so i figure what is the worse that could happen? It still doesn't work.
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Old 01-08-2016
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I am all for doing thing myself but everything now-a-days is a replace it if not working.
Good luck on rebuilding the alternator.
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