Mark 2 trigger prob

[brownfeathermedic]

While cleaning my favorite pistol this afternoon I noticed that after putting her together she failed to activate her click when I pulled the trigger.
after tearing her apart I noticed that a trigger spring was off or broken. Has anyone encounterd this problem, if so , how hard is the fix? I normally only break her down to the largest parts to clean her. Could use some advise,,Thanks !

['ol shooter]

Does it have a magazine disconnect? Did you have the mag in? If no disconnect, take a look at a diagram to see if you can figure it out.
[IMG][/IMG]

[Chaos47]

^ The Ruger MK2 does not have a magazine disconnect. Only the MK3.

OP You actually saw that a spring was broken? If so which one on the diagram above. Or the trigger is just not working? Sorry that part of your post isnt clear.

Are you sure that you set the hammers strut (tail) into the mainspring housing as you pushed it in and closed the latch?





If you don't feel pressure when you try to swing the mainspring housing in then the hammer strut isnt set correctly.


Photos from and more details at:

http://guntalk-online.com/fsprocedures.htm

[brownfeathermedic]

I saw part #58 on the diagram. It looked as if it were nt connected or broken. Is that possible?

[Chaos47]

Thats the sear spring, sure its possible it broke or if you removed the pin that it changed positions.
One leg is supposed to be longer than the other.

Maybe take a photo of your internals so we can see what is going on?









See more here:

http://guntalk-online.com/detailstrip.htm

http://www.1bad69.com/ruger/internals.htm

If its really broken then call Ruger and ask for a replacement, they will send it out free of charge generally.

Its kinda tricky to get back in but with some dental picks or a small screw driver with enough times trying to get it lined up right and then get the sear to sit on it right and then pass the pin through you will get it eventually.

[santamonica9]

great advice & pics Chaos47 - good job

[Glocked@45]

great advice & pics Chaos47 - good job

Chaos47 is the man. When I took apart a Marlin 60 trigger assembly and the springs exploded apart on me, he coached me on how to put it back together.

[Chaos47]

great advice & pics Chaos47 - good job

Chaos47 is the man. When I took apart a Marlin 60 trigger assembly and the springs exploded apart on me, he coached me on how to put it back together.

Thanks guys!

OP let us know how it goes or post up a photo of yours if you are not sure if it looks right.

[brownfeathermedic]

Thank for all your advise and helpful pics Chaos47,I remember noticing that the sear pivot pin looked as if it walked out just a little bit. I pushed it back in and and trigger would move backward without restriction.I"ll look at your diagram again for instruction. Thank you for Beautiful pics. I wish I was talented enough to take pics to show you the problem. I do ok, and not afraid to work on her myself,as Ihave already figuered out how to change an ejector pin. My Target Mark 2 has seen thousands of rounds down her Pipe,as I have enjoyed her Imensely.

[brownfeathermedic]

Update,- I attempted to extract bolt carrier, but it felt stuck even after making sure the long leg was over the cross pin and trigger was pulled in the rearward direction. I removed the sear bolt to loosen the bolt and came away with an array of parts,whew! After this, I walked away with more questions that weren't explained in those diagrams. 1- does the short end of the sear spring rest on the Hammer pin,and if so, mine is definately broken.2nd- a small pin that looks like a small screw that you would find to connect earpiece to glasses,but smooth with rounded head and no threads? oh,oh!

[Chaos47]

I didn't take the photos just posted them from the guide that I referenced: http://guntalk-online.com/detailstrip.htm

If you follow that guide step by step then it should help a ton.

Its a bit hard to follow what you are saying as the names we are using for the parts seems to be different. I assume when you say bolt carrier, you just mean bolt. And also when you say sear bolt that you actually mean the sear pin?

Are you saying you can not remove the bolt? If you are not then I misunderstand your post. If you are having that issue: Hold the trigger back, point the pistol into the air put your thumb on the back of the bolt and shake the pistol up and down till you see the hammer fall backwards. Or fish a small tool in there and move it back. Once the hammer is in the back (cocked position) that should allow the bolt to come out of the receiver (that's why you hold it in with your thumb so it doesn't drop right out hah).

The sear pin goes thru the middle of the circle of the sear spring.
The short leg of the sear spring rests on part of the sear.
The long leg should be against part of the frame behind a non removable pin (if I remember correct)

About the small screw with no threads.. I am really not sure what that is? Maybe its the head of a pin? Maybe you had a pin snap?

You know what...
Is the head concave? Is it the main spring plunger cup? #40 on the above diagram?

(Obviously not to scale)

If that's the case then something broke in your mainspring housing...
I have never taken the mainspring housing apart.. I honestly am not sure you even can...

If the mainspring plunger cup is out then its sort of the same issue I guessed it was in the beginning, when I thought your Hammer strut was not in the mainspring correctly.

In that case look your mainspring housing over and see if all the pins are still in it, and also the mainspring spring itself (Maybe that broke, or is missing). Somehow you need to get the plunger cup back in and close it up? Guessing its held in by a pin?



Or replace the whole part.. if it is actually broken...


The hammer of the MK kind of "floats", the hammer does not have a spring itself. It uses its strut to connect to the mainspring. Your trigger can't slip the sear because your hammer has no spring pressure.

Imagine the hammer and mainspring align like this (Sear not shown but it sits below the hammer and would mate up to the cut in the hammer face):

<----- Barrel forward
They function like this:

[brownfeathermedic]

I'm sorry about the terminology, but were almost there. I pulled the sear spring and it looks shorter on the short end. It comes no where close to the sear pin ,and that concave plunger was close but mine looks as if it has a rounded head instead of a concave one.

[Chaos47]

Its not the trigger plunger then is it?

http://media.midwayusa.com/productimages/880x660/Primary/357/357876.jpg

At this point there is only so much guessing I can do.
Really going to need some photos if we are going to get you in the right direction.