Cracked breach face repairable?

Discussion in 'Gunsmithing and Repairs' started by Connor_brokengun2132, May 27, 2021.

  1. Connor_brokengun2132

    Connor_brokengun2132 Member

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    948234C4-E288-4DBD-8E95-A4306EF58ECC.jpeg So I bought this Norinco tokarev with a 7.62x25 barrel and parts to swap it, about a week into having it and only shooting it 2 times I noticed a small crack below the firing pin orifice and it’s been at the gunsmith for a week. And it doesn’t look like it can be fixed but a worker said it looks like it will be fine, but I can’t imagine that being fine in anyway. After sometime it will expand and possibly blow apart right ?? I’m not sure if I’m overthinking it but it just doesn’t seem fixable. Unless they get a new slide. Any advice would be greatly appreciated! 948234C4-E288-4DBD-8E95-A4306EF58ECC.jpeg
     
  2. edwardware

    edwardware Member

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    Are you sure that's a crack? It's not going from or to anything, and it doesn't look like it's relieved any stress. If the crack continued, what would come off first?

    In my gun, I'd be sorely tempted to skive, weld, grind, and shoot. You gunsmith will likely not be so daring.
     
  3. Connor_brokengun2132

    Connor_brokengun2132 Member

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    I’m almost positive, it was when I was cleaning it my brush got caught in it and when I bought it I checked to see if they 7.62 barrel would work and all and I didn’t notice it. But again I wasn’t looking to hard because it didn’t need cleaned at the time. And I believe if it were to expand it would expand to the firing pin hole and possibly blow the slide apart but again I’m not sure. If it comes back fixed should I still shoot it ? Im not skilled enough to grind or anything I just don’t want anything blowing apart. It could be poor machining but I’m not sure if it would look like if it was.
     
  4. Slamfire

    Slamfire Member

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    From the pictures I would have thought the lines are for part that was peened or dovetailed into the slide.

    If the crack is below the casehead when it is in battery, then if/when it breaks off, pressure containment will not be affected. The case will be chambered to the proper depth and the case properly supported in the chamber.

    I don't know the locking mechanism of your pistol, but this is not locking mechanism structure, so the breech will be locked when it should be locked

    That flange is used in picking up a cartridge, and when it breaks off, you will have feed issues.

    Is the flange file hard, or is it soft? A welder could tell you if welding that would remove any heat treat. If it is not heat treated, maybe a skilled welder could lay a bead, which could be ground flush, without removing any heat treat or hardness.

    Personally, I think you should shoot that pistol till it stops feeding, and buy another, keeping the old one for parts.
     
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  5. milsurpguy

    milsurpguy member

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    Looks like a manufacturer defect.
     
  6. Obturation

    Obturation Member

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    If I'm in doubt I won't shoot it. If a gunsmith or someone associated tells you it's ok to shoot a gun with damage evident to any part, find a real gunsmith.

    Just isn't worth it. A lot of folks like com bloc stuff, I find it all sketchy in perfect condition. The crack looks like nothing but I don't have it in front of me so I don't know. My opinion is that it should go for a visit to a different Smith for another opinion. When in doubt, err on the side of keeping your eyeballs and fingers in their original location and don't shoot it. Maybe over cautious but I'd rather be called that than wish I hadn't done something I knew could be a problem.

    Just my 2 cents, worth what ya paid for it.
     
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  7. Scooter22

    Scooter22 Member

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    Its a blow back action. Nothing is locked closed to blow apart. Only thing I can think of is the bolt may bind. It looks like that is a part added to the bolt like a guide rib. Have you removed the bolt and looked at the under side? I doubt its a safety issue. Good luck.
     
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  8. Connor_brokengun2132

    Connor_brokengun2132 Member

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    Thank you for all the replies! all info is noted, I’ll have to wait and see what they say when it comes back and go from there, nice handgun and all just wanted to get some opinions. I like it and all but don’t want something that could potentially rearrange my hands and face.
     
  9. NIGHTLORD40K

    NIGHTLORD40K Member

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    That looks like a poorly fitted dovetailed insert, rather than a crack. Should be fine.
     
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  10. Connor_brokengun2132

    Connor_brokengun2132 Member

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    Not sure if this helps at all I increased the brightness on the picture so you can see the breach face a little more, and the underside of the slide slightly more you can kinda see it come up right by the little pin hole by the flange that pulls out of the mag. 93D4B1A8-BF24-45C2-8C74-26C4133FA316.jpeg
     
  11. NIGHTLORD40K

    NIGHTLORD40K Member

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    So this was chambered in 9mm Para. originally? I looked at some other 7.62 TT33 slides and and they dont have that little projection at the bottom. I suspect that Norinco machined that peice and inserted it into the slide to improve function with 9mm ammo. The gap is just rough dovetail machining, shouldn't cause any safety issues. I dont know if there will be any feeding issues from converting it back to 7.62x25, however.
     
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  12. NIGHTLORD40K

    NIGHTLORD40K Member

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    53819d1252480156-trying-id-tokarev-pistol-you-expert-pict0231.jpg
    Here is a Russian TT33 in 7.62. See how the bottom of the breechblock is smooth?
     
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  13. Connor_brokengun2132

    Connor_brokengun2132 Member

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    I do see that, it was originally a 9mm but has the barrel and clip and bushing for conversion all you have to do is remove the grips and take a pin out and remove the mag block in the well and it will fit the 7.62 in. It had trouble feeding the 7.62 actually the dovetail would catch the back of the mag and wouldn’t pull a round in. Also wouldn’t dent the primers on the 7.62 ammo but would fire after two strikes from the pin. The 9mm worked fine. No issues at all. So that would make sense that it would be a bad machining job by Norinco. Just a pretty bad one.
     
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  14. NIGHTLORD40K

    NIGHTLORD40K Member

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    Right on, glad its not actually broken! :)

    Welcome to forum, btw- cool avatar!:thumbup:
     
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  15. PRD1

    PRD1 Member

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    The Tokarev TT30/33 is a locked-breech recoil operated pistol. Locking is accomplished by lugs on the barrel seating into corresponding recesses in the top of the slide; much like the M1911-series pistols. The part shown in the photos is the slide: the Tokarev does not have a separate bolt, as such.

    PRD1 - mhb - MIke
     
  16. Connor_brokengun2132

    Connor_brokengun2132 Member

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    Thank you for the help man ! And thanks I appreciate it !
     
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  17. SGW Gunsmith

    SGW Gunsmith Member

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    In the original photo, that has got to be thee MOST fugliest attempt at machining I've seen in at least 45 years. That cutting tool must have been dropped on its radius and onto a cement floor, at least five times. Poor job to say the least!
     
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  18. NIGHTLORD40K

    NIGHTLORD40K Member

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    Thats Norinco for ya. Lol.
    Crude, but it works.
     
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  19. Scooter22

    Scooter22 Member

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    Thanks. Didn;t know that. I thought they were a copy of a old Browning blow back design.
     
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  20. gobsauce

    gobsauce Member

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    This is what the bottom of my slide looks like, Norinco Type 54 in 7.62 Tok. IMG_20210528_233038196.jpg
     
  21. brickeyee

    brickeyee Member

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    Poorly fitted joint.
    Need more pics of the outside of the bolt to try and determine what part they mated to the bold body.
     
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