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  1. smoke on 1964 Marx 1666 with side smoke

    General Model Train Discussion
    Background: Got this MARX set in 1964. 1666 side smoker. When I run this unit under light load smoke is not visible. If it is run full power with a heavier load it will smoke but just slightly. Do the smoke heating coils get weak with age or is the original smoke fluid I got with the set in...