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Adrian
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Stevens 44 loose action
Jun 26th, 2015 at 7:20pm
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I had a Stevens 44 rifle with a tight action. When lowering and raising the lever, i could feel a bit of tension. When the action was closed, the lever would stay up and tight at all times (hammer cocked or half cock and dropped hammer). I took the rifle apart to clean the action and i put it back together without parts left over. Now, the lever stays up when the hammer is dropped, but at half cock the lever hangs one inch low, even though the breach block is still closed and in place. The action still feels tight and i still feel a bit of tension when opening and closing the breach block, it's just the hanging lever that is a new thing. I did not polish or sand anything, but i did use steel wool to clean parts. 
What's wrong?
Is this safe to shoot? 
Thanks
  
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oneatatime
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Re: Stevens 44 loose action
Reply #1 - Jun 26th, 2015 at 7:43pm
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What vintage is your 44? If old enough there is a screw visible below and in front of the breech block. That is the tensioning screw (loosen to tension). If you have one and you screwed it all the way in on reassembly, there is your trouble.
  
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Bent_Ramrod
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Re: Stevens 44 loose action
Reply #2 - Jun 26th, 2015 at 8:04pm
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When you reassembled the action, could you possibly have switched the bolts on the lever and block pivots?  Or even the pins for the lever and block on the link?  If the wear patterns are allowed to add in the wrong way, the lever can easily get a touch of Droopitis.

DeHaas has a great analysis on the leverage effect of even a couple thousandths of extra slop in the linkage of Favorites and 44s.  I've had one that was nice and tight when a cartridge was loaded, and slightly droopy when the chamber was empty.
  
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Adrian
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Re: Stevens 44 loose action
Reply #3 - Jun 26th, 2015 at 8:13pm
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Bent_Ramrod wrote on Jun 26th, 2015 at 8:04pm:
When you reassembled the action, could you possibly have switched the bolts on the lever and block pivots?  Or even the pins for the lever and block on the link?  If the wear patterns are allowed to add in the wrong way, the lever can easily get a touch of Droopitis.

DeHaas has a great analysis on the leverage effect of even a couple thousandths of extra slop in the linkage of Favorites and 44s.  I've had one that was nice and tight when a cartridge was loaded, and slightly droopy when the chamber was empty.

Nope, i made drawings and maps and i took 40 digital photos and 4 pages of drawings and notes while taking the thing apart. I placed each part in a labeled envelope. 
« Last Edit: Jun 26th, 2015 at 8:27pm by Adrian »  
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Adrian
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Re: Stevens 44 loose action
Reply #4 - Jun 26th, 2015 at 8:26pm
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oneatatime wrote on Jun 26th, 2015 at 7:43pm:
What vintage is your 44? If old enough there is a screw visible below and in front of the breech block. That is the tensioning screw (loosen to tension). If you have one and you screwed it all the way in on reassembly, there is your trouble.


oneatatime, you saved me from great anxiety and expenses and an 8 hour round trip to a gunsmith. I found the screw, i loosened one quarter turn, the action is as tight as a bank vault. It clicks and clacks now. 
THANK YOU
  
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sakoman
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Re: Stevens 44 loose action
Reply #5 - Jun 27th, 2015 at 12:45pm
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Exactly where is that screw located?

Thanks,
Allen
  
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Adrian
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Re: Stevens 44 loose action
Reply #6 - Jun 27th, 2015 at 4:07pm
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Allen,
Lower lever and breech block, Look down inside the action, at the chamber end of the breech block. The screw, if it exists on your rifle, is visible from the top of the action, it's on the front and bottom of the breech block (i think).   
Move it 1/8 of a turn out, to tighten action. You don't want it too tight, that probably will induce wear.
  
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uscra112
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Re: Stevens 44 loose action
Reply #7 - Jul 3rd, 2015 at 10:36pm
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Only to be found on early 44s with the 7 o'clock extractor.   It's a quick fix, but not a substitute for properly setting up the barrel's breech face and tightening up the link pins.   Smiley

What's it chambered for ?
  

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BP
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Re: Stevens 44 loose action
Reply #8 - Jul 4th, 2015 at 3:04pm
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What affect does that 1/8th of a turn out have on headspace?

  

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John Boy
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Re: Stevens 44 loose action
Reply #9 - Jul 4th, 2015 at 5:44pm
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Adrian, take a look at this diagram for the placement of the various parts ... (You need to Login or Register to view media files and links)

The link #25 and link pins #26 govern the tension on the finger lever. The screw on the front face of the action is not identifiedin this diagram
Good Luck
  
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oneatatime
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Re: Stevens 44 loose action
Reply #10 - Jul 4th, 2015 at 9:06pm
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The screw is not on the front face of the breech block but is vertical on the horizontal extension and thus bears on the receiver under the barrel when the action is closed. If the block is fitted to the receiver shoulders the screw can't affect the headspace only the tension on the lever/linkage.
  
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uscra112
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Re: Stevens 44 loose action
Reply #11 - Jul 4th, 2015 at 9:30pm
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BP wrote on Jul 4th, 2015 at 3:04pm:
What affect does that 1/8th of a turn out have on headspace?



Strictly speaking, backing out the screw to "tighten" the action will increase the headspace, but by such a small amount that's it's negligible.   

(The drawing at the link shows the central-extractor action, which does not have the screw.)

Properly set up, the face of the breechblock should be an .001" to .003" interference fit to the face of the barrel when the action is closed, and that will provide tension to the lever.  At the same time, the back of the breechblock should be in contact with the small shoulders in the frame, which takes much of the thrust on firing.  You can test this using a strip cut from a thin plastic bag, (0.4 mil) as a feeler.  Early (side-extractor) 44s that have come to my attention all seem to be pretty well fitted this way, BTW.   

If there is clearance at the breech face, cock the hammer and try levering the breechblock up a little at  the back.  If that closes up the gap, you have proof positive that the link needs rework.  Worn or bent pins, and battered pin holes, will allow the breechblock to stop short of its' full-lock position.  This is so common as to be endemic in almost all well-used 44s we find in attics and at gun shows.   

The proper fix is to ream the various holes to fit slightly larger pins.  It that doesn't do enough, the barrel must be set back.




  

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