Hermle 1161 Question

Discussion in 'Clock Repair' started by hookster, Sep 15, 2014.

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  1. hookster

    hookster Registered User
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    #1 hookster, Sep 15, 2014
    Last edited: Sep 15, 2014
    Just got one in for service. Looks OK but will require cleaning oiling, etc. At some point in time, it appears that someone put steel bushings in the front brass plate on T2, S2 and C2. The pivots and bushings don't look all that bad, but should I knock out the steel bushings and replace with brass or bronze? Or, perhaps, did some of these come from the factory this way? Seems to me that steel on steel would be tough on the pivots over time?
     
  2. Willie X

    Willie X Registered User

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    Steel bushings? That would be rather weird to say the least..

    I look forward to the comments on this one.

    You sure they are steel? Might be, tungsten, carbide, corundum, kryptonite, etc. :)

    Willie X
     
  3. harold bain

    harold bain Registered User
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    Brass or bronze are all I know of from our usual suppliers. Do they look more homemade than something you would usually see? Did you check them with a magnet, without the pivot?
     
  4. hookster

    hookster Registered User
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    Hi Harold. It is an early Hermle made for the Howard Miller Clock Company in Zeeland Michigan (not in itself so unusual). I have not yet split the plates. When I do so, I'll knock one of these bushings out and test it with a magnet. I have never seen a bushing like this in over 20 years. All the best.
     
  5. Tinker Dwight

    Tinker Dwight Registered User

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    You might scratch one first to see if it is just
    a thin coating. It is possible that a previous cleaning
    left an oxide coating that looks like steel.
    It is technically possible to use a softer steel as a bushing.
    Tinker Dwight
     
  6. MARK A. BUTTERWORTH

    MARK A. BUTTERWORTH Registered User
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    The factory never used steel bushings. For that matter, the factory did not use any bushings on the 1161 unit.
     
  7. hookster

    hookster Registered User
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    Here is a picture of the strange bushing. It looks a bit 'bronzy' on the upper right but that is just my camera. It really looks like steel to me? DSCN0299.jpg
     
  8. hookster

    hookster Registered User
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    Here is a picture of one of the bushings in question. It looks a bit 'bronzy' in the upper right but that is just my camera. It sure looks like steel to me. Strange. DSCN0299.jpg
     
  9. bangster

    bangster Moderator
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    Check it with a magnet after you split the plates, but before you knock the bushing out. My bet, despite its appearance, is that it's non-ferrous. Cupro-nickel a possibility.
     
  10. hookster

    hookster Registered User
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    Movement is all apart. Those curious bushings are indeed steel!! I will replace all three with bronze ones. Also, a couple of the holes further up had been punched in the past. I guess whoever worked on this one in the past used whatever tools and materials he had on hand.
     

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