Marlin 1889 38-40 Hammer configuration
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Thread: Marlin 1889 38-40 Hammer configuration



  1. #1
    Tinhorn
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    Arrow Marlin 1889 38-40 Hammer configuration

    Took my rifle apart to replace the hammer. The “half cock” notch was worn and rifle would slip half cock with slight bump of hammer. Purchased an original 1889 hammer to replace. When I removed the original hammer I noticed that hammer has a pinned roller bearing. The replacement hammer has no such roller. An investigation appears to indicate the 1889 hammer had no such roller but 1893,1894 and other newer Marlins did have such a roller.

    Does anybody know whether this is correct or did the Marlin 1889 hammer in some variation have a roller too?

  2. #2
    Deadeye
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    Your reseach sounds correct. I couldn't find an 1889 hammer with a roller. I know my 1893's have the bearing. If I get a chance, I'll pull the stock off my 1889 and take a look!
    Where di you get the part from?? Compare it to your old hammer, swap it out and see if it works!!

  3. #3
    "Opinionated Texan" Super Moderator
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    I had an 1889 38-40 and I believe it did have that roller.
    Mine was doing the same thing and I simply filed the half cock notch deeper.
    Problem solved.
    Navajo
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  5. #4
    Site Contributor Contributing Member
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    A picture of the hammer in question might help.
    Old Marlins, and Single Shot Rifles!
    http://members.tripod.com/~OregonArmsCollectors/

  6. #5
    Deadeye
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    IMG_0079(2).jpg I took a picture of mine, it has no roller. I moved the spring out of the way. Mine is from 1889 they may have upgraded to the roller bearing at a later date. Couldn't find any reference in Brophies book, and all the pictures showed the plain hammer.
    Last edited by Big Al1; 05-08-2019 at 11:10 AM.

  7. #6
    Tinhorn
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    Marlin 1889 hammer configuration

    My Marlin 1889 was made 1893 so perhaps the reason for an 1893 type hammer
    Attached Images Attached Images

  8. #7
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    Good picture, and I think your guess is a good one. Likely improved over earlier versions based solely on being very late production.
    I'd do as mentioned and recut the half cock notch, vs. replacing it. It's best to keep it as original as possible considering how unique it is.
    Old Marlins, and Single Shot Rifles!
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