Help Please...Ruger MK II...Assembly problem ?

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First off, let me just say that I regularly take guns apart, clean them, fix them, and do trigger jobs, so I do have a bit of experience with working on guns.....but heres my problem :

I have a nice Ruger MK II .22lr pistol that always works great. For some dumb reason, I figured that I should take it apart to clean it thoroughly. I have disassembled it and re-assembled it before, and although it was a little tricky, I was have previously assembled it properly and had no problems. For some reason that I can't figure out this time, I must be assembling it incorrectly. I have watched countless videos and looked at countless threads about the proper procedure for assembly and it appears that I am doing everything correctly, however the gun is not working, no matter how many times I take it apart again and start over with the assembly.

The problem is, after I assemble it I can't get the gun to "click" or shoot when the trigger is pulled. The last time I assembled it again, I thought I finally had it put together properly because after I cocked it, and pulled the trigger, it clicked and the firing pin worked and the trigger felt right. Directly after, I tried it again and nothing happened....no click, no nothing. The trigger did'nt feel quite right either while squeezing the trigger, while it's cocked. The trigger feels a bit "spongy" with very little spring to it.

Any ideas of what I might be doing wrong in the assembly would be greatly be appreciated. I do not think that anything is wrong with the gun, becuase prior to dissasembly it worked flawless...I just figured I should take it apart and clean it because it has not been thoroughly cleaned in a long time...but now I am really regretting it. I don't believe nothing is broken. (unless I accidentaly broke something, or dropped and lost a part needed, but I really don't think I did either) I think I am just missing a step in the assembly or not assembling everying 100% correctly, but either way I'm stumped.

Help, please....Its my favorite pistol to shoot, because its accurate, reliable, and cheap to shoot.

Thanks.
 
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It has been many years since I had a mark 2 but if memory serves there is a small actuating arm inside the grip that needs to be in place for it to work right . I remember almost needing three hands and flipping the gun upside down to get the thing to engage . But that is where my usefull memory ends .It is a common issue and easily fixed if it is the same thing .
ruger_parts.jpg
I think it is a01000 in this diagram.

this covers each step in writing and fairly good detail. http://www.1bad69.com/ruger/field_strip.htm
 
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My bet would be one of 3 things.

First, when you put the back strap in you need to tip the barrel up just a touch to get the hammer strut to rest back on the mainspring ( part number A00100 above ).

Check that the mainspring plunger isn't jammed down ( pn-KA02509 above. ) this is wildly unlikely tbh but check anyway.

Nest would be to check the trigger return spring and plunger ( pn-A20400 & A02508 ) and the sear spring A03100.

If you didn't do a full strip down to the frame I'm doubtful much could have gone wrong. I'm betting it's just the hammer strut isn't contacting the mainspring properly.

gl
 
Mil Specs said:
It has been many years since I had a mark 2 but if memory serves there is a small actuating arm inside the grip that needs to be in place for it to work right . I remember almost needing three hands and flipping the gun upside down to get the thing to engage . But that is where my usefull memory ends .It is a common issue and easily fixed if it is the same thing .
ruger_parts.jpg
I think it is a01000 in this diagram.

this covers each step in writing and fairly good detail. http://www.1bad69.com/ruger/field_strip.htm
Click to expand...

Thanks for the diagram, it might help me to go over everything. I know the actuating lever inside the handle needs to be down and resting into the the other "pin assembly part", and at first I thought this was the problem, but I know I am putting it in properly now so that it is engaged insided the handle. I was wondering though, if maybe it is not resting properly which is why after one pull of the trigger it clicks and works, but then the second time I pull the trigger, I get nothing but a spongy trigger and no click.
 
"...figured that I should take it apart..." That'd be a very big mistake. Ruger .22's are, and always have been, a nightmare to reassemble. Regardless of your experience. Far worse than a Remington Nylon 66.
The trick is persistance in getting the fiddling with the hammer strut just right. As really stupid as that sounds.
And never, ever remove the barrel/receiver assembly. Or even think about doing so. Press fit.
Exploded drawings will only tell you if you have missing parts. Useless for assembly otherwise.
 
for my Mark III I always make a full disassemble for cleaning after each session, you need to figure it out when insert the magazine and push way back the Inside the upper plate (piece A01800) and remove the magazine, then align A01000 at the good place, the back strap (A00900) must be in tension in the last 1/8 inch if not your not correct with your assembly.

make a full disassemble and reassemble.
 
Many years ago, my first handgun was a Ruger Mk 1.
I bought it from a gun store in Toronto. I remember the address. 3006 Danforth Avenue.

Anyway, I got it home & decided to take it apart to clean it. 2 days later I took the gun, in parts,
back to the store & the owner showed me how to put it back together. In those days we did
not have ATT's , we had carry permits.
 
Okay guys thanks for the advice. I will be probably taking it apart again tonight and start from scratch. I think my problem is either the spring that needs to sit under the pin, inside the handle may not be staying under tension or I am doing something wrong with the cocking of the hammer as I assemble it. Its really frustrating, since the last time I took it apart, I had it back together perfectly in just a few minutes the first try. This time around, I'm not sure what I'm overlooking and not doing right, but I have spend hours disassembling and reassembling countless times with no success. Either way, I'm taking another crack at it tonight.
 
You can fully test the lower frame before adding on the upper. Instead of seating the mainspring housing I just use finger pressure against the hammer to simulate the spring. But you can check for "firing" the hammer. When you do hold the trigger back and cycle the hammer up then back to simulate a recoil event. Then let the trigger ease up and "trip" the disconnector by hand. It should then be ready to respond to finger pressure and allow the hammer to drop.

If you still have the magazine disconnect in the frame you'll need to have a mag in place during all this.
 
sunray said:
"...figured that I should take it apart..." That'd be a very big mistake. Ruger .22's are, and always have been, a nightmare to reassemble. Regardless of your experience. Far worse than a Remington Nylon 66.
The trick is persistance in getting the fiddling with the hammer strut just right. As really stupid as that sounds.
And never, ever remove the barrel/receiver assembly. Or even think about doing so. Press fit.
Exploded drawings will only tell you if you have missing parts. Useless for assembly otherwise.
Click to expand...

Nonsense. The Ruger is not a nightmare, but it does take a bit of finessing. Holding the gun with the barrel up is a good idea when re-assembling, as Rascal pointed out. I found about 45 degrees to work well.
As for the barrel/receiver assembly, I've never had the slightest difficulty with this. I frankly have no idea what Sunray is talking about here.
 
stevebc said:
Nonsense. The Ruger is not a nightmare, but it does take a bit of finessing. Holding the gun with the barrel up is a good idea when re-assembling, as Rascal pointed out. I found about 45 degrees to work well.
As for the barrel/receiver assembly, I've never had the slightest difficulty with this. I frankly have no idea what Sunray is talking about here.
Click to expand...

I have to agree with you, been cleaning and re-assembling mine since 1962 ( first handgun ) with no issues whatsoever.
Also agree with your last sentence.....
 
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