so today, took the DT125 dynamo apart for cleaning. Been wanting to do this for a while. Found lots of carbon and glazed/caked on deposits. As a bonus, polished the case, and cover on re-install.
Before:
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6 o'clock position = not cleaned, 7 o'clock = cleaned.
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After:
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Bonus:
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Tools/chemicals used:
600 grit sandpaper (per service manual), Chem B-12 spray, very fine alum oxide pad, and an air gun. I did put the 12 mm yoke bolt in and spin in a few times w/the drill also (no spark plug installed).
Also, lightly sanded off the end of the brushes to allow them to reseat.
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