Rebuilt Minitrix PC F units

Discussion in 'N / Z Scale Model Trains' started by Ray Marinaccio, Sep 3, 2004.

  1. Ray Marinaccio

    Ray Marinaccio Active Member

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    A couple more rescued from the cutting torch.
    I got these in a lot of N scale parts.
    This is #1665. The pilot was half gone, a crack ran up the nose to the headlight and the side skirts were broken out below the slot.

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  2. Ray Marinaccio

    Ray Marinaccio Active Member

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    Here's #1656. It needed the pilot repaired.

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  3. Ray Marinaccio

    Ray Marinaccio Active Member

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    Both units were missing the horns.
    I fabricated these on the lathe from 1/8" aluminum rod, then wrapped .006" steel wire around them and twisted it to form an eye bolt for the mounts.

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  4. Ray Marinaccio

    Ray Marinaccio Active Member

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    The chassis were both stripped of their primemovers before I got them.
    New mounts were made to hold these expensive motors i bought at a reclamation center in Phoenix for 50 cents each.
    I disassembled each motor and pressed the shafts of the armatures so they were equal lengths on each side.
    these are the mounts on one of the motors before the shaft was pressed.

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  5. Ray Marinaccio

    Ray Marinaccio Active Member

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    This is how the motor sits in the frame.
    Couplings were then made to conect the motor shafts to the worm shafts.

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  6. Ray Marinaccio

    Ray Marinaccio Active Member

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    Electrical pickup from the trucks was through wipers and a contact plate on a PC board. I eliminated the whole system by hard wiring the truck to the motor.

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  7. Ray Marinaccio

    Ray Marinaccio Active Member

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    These units run rather well for what they are. (not as good as my Kato F3 though)
    This is an old Con/Cor F3B that I modified the frame to accept a pair of Bachmann dummy trucks.

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  8. TrainClown

    TrainClown Member

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    Good work Ray. Interesting what you did to the shaft of that motor. how did you transfer power from the motor to the trucks? Also, how do you hook onto the motor shaft in a reliable way?

    Is N gauge the smallest you have worked on? Ever work on Z gauge? By contrast, what was the largest gauge you worked on?

    Just curious ;)

    TrainClown :D
  9. Ray Marinaccio

    Ray Marinaccio Active Member

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    TC,
    Pressing the armature shafts is tricky. I ruined a few motors before I figured out the trick to it. When pressing the shaft you have to support the commutator as well as the poll pieces.
    I made a flexible coupling the same way I did for the loco in this link.
    http://www.the-gauge.com/showthread.php?t=6517
    This loco has basically the same style worm assembly

    I haven't worked with Z scale, Yet.
    The largest is the 7 1/2" gauge backyard railroad of my dad's that I grew up with.
    http://www.the-gauge.com/showthread.php?t=9407
  10. OwenCPR

    OwenCPR Member

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    Love the horns Ray
  11. SD90

    SD90 Active Member

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    Great work Ray, it's always good when you can salvage a loco!