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Thread: Too Light of a trigger - now what?

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    Wrekreation is offline
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    Too Light of a trigger - now what?

    I just finished building an 1842 Springfield Smoothbore. The trigger seemed a little light. I bought an electronic meter and the average trigger pull is 1.66 pounds. I bought an original sear spring, installed it (it is thicker than the one I had) and the trigger pull average is 1.67. The lockplate is an original but all the parts SEEM to be European made (new). A friend said I should replace the tumbler. Before I continue a piecemeal replacement/repair program I'd like to hear some other ideas on what I might do.

    Thanks

    Craig Goheen
    49th Va.

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    MR. GADGET's Avatar
    MR. GADGET is offline Moderator
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    It is very hard to get repop parts to work with original parts. Most will not fit.
    With that weight I would bet the angles are off.
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    With my Armisport 1842, if/when the bridle screws back out my trigger pull gets very light. Same thing happened on my Pedersoli Sharps. I don't know what about this condition makes the sear more likely to trip but anyway it could be something to check.

    Steve
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    John Bly is offline
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    It's obvious that the angles of the sear/tumbler interface are not correct. Remove the sear spring and see if it will lock up with no spring tension. Hold the sear in place with your finger to do this. It should lock in place. If it won't lock up then the angles need some work. I try to get the sear spring tension to be about 2 lbs with the hammer down. The rest of the trigger pull has to come from the lockup of the sear/tumbler interface. If you don't feel comfortable working on it take it to someone who can do this for you.

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    Wrekreation is offline
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    Not loose - tks

    Quote Originally Posted by Maillemaker View Post
    With my Armisport 1842, if/when the bridle screws back out my trigger pull gets very light. Same thing happened on my Pedersoli Sharps. I don't know what about this condition makes the sear more likely to trip but anyway it could be something to check.

    Steve
    I checked the bridle screws - seem snug. - Thanks

  6. #6
    MR. GADGET's Avatar
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    Also what lube or grease?

    Some of the synthetic lubes and grease can really change the.trigger pull.
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    Wrekreation is offline
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    I'm know familiar with the Angles.

    Quote Originally Posted by MR. GADGET View Post
    It is very hard to get repop parts to work with original parts. Most will not fit.
    With that weight I would bet the angles are off.

    Thanks - I'll do some more research - or find an expert. Name:  IMG_7756.jpg
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    Wrekreation is offline
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    an old 200 viscosity lube my dad gave me 50 years ago.

    Quote Originally Posted by MR. GADGET View Post
    Also what lube or grease?

    Some of the synthetic lubes and grease can really change the.trigger pull.
    Don't really know what the lube is, but it has always worked.

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    Wrekreation is offline
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    It locks

    Quote Originally Posted by John Bly View Post
    It's obvious that the angles of the sear/tumbler interface are not correct. Remove the sear spring and see if it will lock up with no spring tension. Hold the sear in place with your finger to do this. It should lock in place. If it won't lock up then the angles need some work. I try to get the sear spring tension to be about 2 lbs with the hammer down. The rest of the trigger pull has to come from the lockup of the sear/tumbler interface. If you don't feel comfortable working on it take it to someone who can do this for you.
    I will lock up without the sear spring. I don't even have to hold it with my finger, the weight of the sear engages it without effort.
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    MR. GADGET's Avatar
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    I would need to dig mine out but looks like the spring contact on the sear is too close to the rotation point.
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