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Going to take down a s&w 686-4 Questions

Discussion in 'Handgun Discussion' started by Petes, Mar 1, 2010.

  1. Petes

    Petes Active Member

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    I dont think this 686-4 has ever been apart. I want to take it all apart for inspection and cleaning.
    I thought I would ask the forum if I need to look for any surprise spring loads or special tricks.

    Any special tools needed? Or do I need a gunsmith?

    Thanks for sharing your experience.

    Pete
     
  2. rodell

    rodell Newcastle, WA Active Member

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    It isn't terribly complicated. Go to the S&W forum or one of the on-line parts houses and get yourself a schematic.

    Take the screws out of the side cover. They are different lengths, don't mix them up or you'll be scratching your head later.

    Nothing will jump out at you when you take the cover off. Do not pry it off from the surface, you'll mark it. Either pry it from the grip opening (you did remove the grip, right?) or rap it sharply on the other side with a plastic or rubber mallet.

    The hammer block rides in a channel on that cover. It might stay in place or it might come with the cover. Nothing else should come out.

    Then you can see how much cleaning you have to do.

    Bob
     
  3. AndyH

    AndyH Keizer, Oregon Well-Known Member

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  4. PhysicsGuy

    PhysicsGuy Corvallis, OR Resident Science Nut

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    If you are doing a full takedown, the biggest pain I have found is putting back in the trigger return spring, but there is a special tool made to help that along.

    Also be careful not to lose the spring in the in the cylinder latch, or the trigger return spring when disassembling, those are probably the only major surprises.
     
  5. MountainBear

    MountainBear Sweet Home, OR Well-Known Member

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    NO!!!!!!!!!!!!!

    YES! More specifically, rap it sharply on the grip area on the side opposite the side plate once you have removed the grips.

    But please don't do things yourself. I'm currently in the process of repairing an otherwise beautiful model 18 S&W that someone who didn't know what they were doing got in to. By the time I'm finished I'll have had to change all of the main springs (rebound, sear, mainspring), several parts (sear, strain screw), and a bunch of time. Just have a pro do it first. Fixing other people's mistakes is an expensive proposition...
     
  6. Petes

    Petes Active Member

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    WOW great advice. I will be carefull withthe side plate thanks for the advise on the the springs. I was glad to hear that there not surprises with taking of the side cover.
    At least I will be able to se where everything goes before I take it apart.

    thanks guys!!
     
  7. PhysicsGuy

    PhysicsGuy Corvallis, OR Resident Science Nut

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    Well the only think that might not stay in place would be the hammer block, its a long skinny bar that may fall out with the side plate, but you can find pictures of how it should be placed around the net.
     
  8. Petes

    Petes Active Member

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    PhysicsGuy.... right on about the hammer block. It fell out first thing. I had the exploded view of the gun b4 I started.
    It didnt need much cleaning so didnt need to take it all the way down.
    Shinned it up and put the "Sunday go to meeting " grips on it.
    Thanks again............

     
  9. PhysicsGuy

    PhysicsGuy Corvallis, OR Resident Science Nut

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    That's a good looking 686! Looks like a 3"?
     
  10. Petes

    Petes Active Member

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    Yes sir 3" it is.

     
  11. Taurus 617 CCW

    Taurus 617 CCW Northern Idaho Member

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    +1 on that quote. Most competent gunsmiths will do a deep and lube cleaning for under $60. If you mess something up on the inside it could cost you double that at the very least.
     
  12. rodell

    rodell Newcastle, WA Active Member

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    This is the way I was taught, but, I wasn't very specific with the "pry". I was shown sliding a screwdriver along side the plate and "lifting" the plate off. I've used it a number of times when one was stubborn.

    You're right, you shouldn't wedge against the other side. My bad for a bad explanation.

    Bob
     
  13. onearmedswordsman

    onearmedswordsman Hillsboro, OR Member

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    I'd rather rap it than pry. If you pry, you will flare the edge of the upper corner of the sideplate. See the video, if you haven't already.