Canjar Single Set Trigger Problem

Discussion in 'Gun Project Questions & Gunsmithing' started by Redrover, Sep 10, 2019.

  1. Redrover

    Redrover

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    Jul 6, 2006
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    I recently got out a Canjar single set trigger I’ve had for decades, installed it, and found that it functions correctly unset, but it canl no longerbe set. Push the shoe forward and the center blade comes forward as it should, but there is only feeble ‘click’ sound and it does not latch. The trigger has had very little use, despite its age, and always used to work perfectly well, so nothing should be worn out.


    I tried soaking and flushing it with lighter fluid, but this made no difference. It did look a bit dirty around where the shoe connects with the main trigger lever, so I removed the pin, detached the shoe, and gave all the surfaces I could reach a thorough clean. I did not remove the small ‘sear’ in the top of the shoe as I do not have a punch small enough, but it looked clean and moved freely under the pressure of the tiny coil spring acting on it. Once the parts were clean, I reassembled the mechanism, and found that it still does not set, and it does not make any sort of click sound now.


    Has anybody else had this problem and knows how to fix it? Or can anybody direct me to some place where there is a diagram of the inner workings of the set shoe? I could probably figure things out myself if I could find such a diagram. I have searched and ‘Googled’ until I have nearly gone cross-eyed, and found numerous articles on how to ADJUST the trigger unit, but nothing relevant to my problem. Nor any diagrams of the ‘innards’ of the set shoe.


    T I A
     
  2. Hal

    Hal

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    Oct 8, 2008
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    On the side of the trigger shoe is the weight adjustment screw .( for the "set" part of the trigger)
    Back it off 1/8 th of a turn and try it.

    Hal
     
  3. Redrover

    Redrover

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    Adjusting that weight adjustment screw both inwards and outwards was the first thing I tried when I became aware of the problem. Unfortunately it didn't make any difference.
     
  4. HonkinDonky

    HonkinDonky

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    Aug 3, 2019
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    Following along here, as I have a .219 Donaldson wasp with the exact same problem on it's canjar set trigger...
     
  5. Redrover

    Redrover

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    Interesting. Hopefully somebody will know the answer. If not, I guess I will have to improvise a punch less than 1/16inch diameter and try to completely disassemble the thing and hope it doesn't fly apart. If anything gets lost I'll be in real trouble! Then I'll have to hope that I can figure out what the problem is.
     
  6. Ggmac

    Ggmac Gold $$ Contributor

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    Do you test it with pressure on the sear ? The trip should set , as you know , I've had this problem and can't remember what I did but I know it was simple. Is there a small screw that holds the shoe on ? For some reason I think it has to do with the shoe attachment to the trigger assembly. I know this isn't much help and one thing I remember is trying to reassemble the set blade is tricky and that little spring is hard to find a replacement for. More after coffee.
     
    Last edited: Sep 11, 2019
  7. Johnny_V

    Johnny_V

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  8. Redrover

    Redrover

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    Yes, I have seen that, thanks. The PDF file is essentially a copy of the factory instruction sheet I received with the trigger when I bought it in the late 1960s.

    Unfortunately neither of them, nor any other write-ups I have found, address the problem HonkinDonkey and I are having. Other than to say the trigger should be returned to the factory if repairs are required - which is no help these days.
     

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