Mark II Re-Assembly (please murder me)

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[QUOTEAll else aside - its a pretty sorry design when you take someone who is fluent in assembling and disassembling all types of weaponry and then all of a sudden one particular design causes this kind of problem.

Why they decided to make the ability to assemble correctly so random. Its like if you follow the directions exactly its still random if it will work.

Bad Bad Bad design.][/QUOTE]

I won't dispute the point that it isn't a particularly intuitive design, but I have to tell you, if you follow the instructions, it goes together reasonably well. Also, it comes apart easily.

I am no genius, and the first time I tried to put one together, I failed. So, I read my manual. The second time I had it together in about 30 seconds, and have never had any particular trouble since. I can take mine down on the range or in the field and put it back together quickly and with no particular problems.

Now then, two things: One, as I said before, I will not dispute that there is a learning curve. It is not at all an apparent process,\ and if it it isn't done right they are a bear to get back together. If you take your time and learn the steps, it's not bad at all. I don't think anyone can really disagree with any of that. Secondly, under normal usage, there isn't any particular reason to take it apart at all, or at least very often. I have ran, literally, a case of ammo through mine since I last cleaned it, and while it isn't sparkling clean, it functions just as well as if it was. Some people will agree with me on that, some people will inform me that I am abusing my gun, but in the ten years and gazillion round of ammo I have shot this particular MkII of mine, I have taken it down maybe 3 or 4 times to clean it, and maybe 3 or 4 times just to make sure I could.

As to it being a bad design, I disagree. You yourself said it was a good gun and functioned great. That implies that it is a good design. I will grant you that it is not as easy as a Glock (pull slide back .12 inch, pull take down levers, slide off), but that just isn't what this gun is. That it is mechanically more complicated doesn't mean it is a bad design, just that it is more complicated. Oh, I know, "simpler is better", and to a certain extent that is true, but more complicated doesn't mean worse when the parts themselves are simple, it just means more complicated. Using a calculator is more complicated than using your fingers and toes, but that doesn't mean it is an inferior design, it just means you have to learn the tool.
 
Now you want to dance around and give people the finger?

Griow up.

I predict your time here will be short.

Wow really? The comment was used in a figurative manner. I love how people come into a thread and start replying based on something 50 posts prior instead of hopping on the train with the current discussion.

Ever heard the term a day late and a dollar short? Coming in here now and saying that is like laughing at a jokes punchline 10 minutes after the joke has been said.



As to it being a bad design, I disagree. You yourself said it was a good gun and functioned great. That implies that it is a good design. I will grant you that it is not as easy as a Glock (pull slide back .12 inch, pull take down levers, slide off), but that just isn't what this gun is. That it is mechanically more complicated doesn't mean it is a bad design, just that it is more complicated. Oh, I know, "simpler is better", and to a certain extent that is true, but more complicated doesn't mean worse when the parts themselves are simple, it just means more complicated. Using a calculator is more complicated than using your fingers and toes, but that doesn't mean it is an inferior design, it just means you have to learn the tool.

Do any other firearms mimic this design? I don't recall any, but I am curious.
 
Ruger MK-series dis-assembly is a topic that will forever haunt internet gun forums. Most of us who have one have learned to live with the complications of the procedure because the inherent gun is a good one. Otherwise we would have bought a buckmark instead. :)

Sounds like the mainspring broke in half and is binding up inside the MSH.

But let's please keep the topic focused on solving your problem and not the back-and-forth.
 
Ok so heres where we are at now.

I soaked the MSH over night in some solvent and then pretty much let it sit in some lube (submerged) for some time. (So at this point there not may be anything physically broken - it was just some sort of build up possibly.)

Its now cocking the bolt back all the way properly but now we have another issue and Im a bit stumped.

When you pull the bolt back it locks in place. Its acting like a magazine is inserted and the last round was fired.

The bolt release is not holding it. If I tap it forward with my palm it will slingshot into place.

But everytime, bolt back - locks. It should be moving freely unless I engage the bolt stop lever correct?

I checked the guide rod "ears" for bends and they are good. The rod and spring overall are in standard shape. Checked for other bent metals or burs and can't find anything.

Ideas?
 
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Do you have a magazine in? Otherwise the only thing that should hold the bolt open is if you push the bolt hold open lever up.

Otherwise try giving the inside the of the upper receiver a really good cleaning and also clean the outside of the bolt.

You might also replace the recoil spring on top of the bolt: it might be binding or weak.
 
Yea, no magazine in and its not the bolt hold open lever.

Everything has been cleaned very well. I think I might be on the same page as you in possible binding of the recoil spring.

If I pull the bolt back 9/10th of the way it moves freely back and forth. That last 1/10th of rear movement its a very 'crisp' lock type feeling. Perhaps its getting caught up on something? I couldn't find anything though.

If the recoil spring is going to bind, would that be normal behavior? I always imagined binding would occur sooner along the pull than just the last bit. Could be wrong of course.
 
You might also check the rod that the recoil spring rides on and make sure it is straight and true. No, the recoil spring should not bind up, it should freely compress along the rod.
 
Yea I found on the internet some users had the rod "dog ears" that were slightly bent causing some binding. However mine are straight and flat and the rod is the same.

Weird. Well at least a new spring doesn't cost much money to test.
 
When you pull the bolt back it locks in place. Its acting like a magazine is inserted and the last round was fired.

Wonder if it would behave that way when you shoot it? Or would the recoil impulse give it enough of a jolt to 'bounce' at the end of the bolt travel and move forward on its own?
 
Yea I've been reading up and other users (mainly Mark III) have experienced what I am experiencing, but it shoots fine.

The only thing that bugs me is it did not do that before being broke down. Purely out of curiousty I want to know what causes it. Gonna drive me nuts.
 
Do any other firearms mimic this design? I don't recall any, but I am curious.

I don't think so, but I guess I don't know. Keep in mind, it is a design that is like 65 years old or so...
 
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