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Reply to "Recommendations when buying vintage locomotives"

@PRR Man posted:

I recall a recent topic (not on this forum) discussing minute pieces of metal bridging the tire to the wheel center on rim insulated drivers. is that how these drivers are done?

Good point.  The drivers are cast iron.  Thinking that some oxidation may be bridging the insulation to the tire.  Another person thought it may be some water in the insulation paper, presuming they used insulation paper.

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