22/45 Reassembly?

blacknwhite71 · Post by **blacknwhite71** » Fri Feb 22, 2008 9:08 pm

Ok I fixed to old problem on my MKII 22/45 now I am trying to reassemble it. Once I get it all back together here is what happens.
If I pull the slide back it is harder than it should be and stays open unless I push it closed.
The trigger does nothing when I pull it, nothing at all.
Here is the kicker, if I pull the mainspring housing latch open so that the latch would be sticking you in the palm if you held the pistol in the shooting position the slide works smooth just like normal, the slide stop works, but the trigger doesn't work. I guess I didn't put it together right or something but I followed the videos and everything and it still isn't right so could some of you MKII gurus give me some help I'm sure some of you have been here before.

Post by **Bullseye** » Fri Feb 22, 2008 11:22 pm

From your description it sounds like the hammer pivot pin isn't in both sides of the frame, or the pin has walked out to one side. What happens is the mainspring tension pushes up on the hammer and that cocks it slightly and adds drag to the bolt. When the mainspring is remove, so is the tension, allowing the bolt to operate normally.

Here is a picture of what happens to the hammer pivot pin when it isn't in the frame completely or if the pin walks.

Is the sear spring in the correct position to lock the hammer pivot pin in place?

The long leg must be to the rear of the frame to lock the hammer pivot pin in place.

Hope this helps.

R,
Bullseye

blacknwhite71 · Post by **blacknwhite71** » Fri Feb 22, 2008 11:32 pm

Taking her down and trying again, one sec.

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 12:05 am

Well I'm a moron, I was just sitting here with it together again and was wondering what the deal was same problem. I looked at your field strip guide and saw the part about putting an empty mag in and pushing the hammer forward could that be my problem? I was not doing that before, I lost my only mag when the mag release broke so can I do it without a mag? I'm going to town tomorrow and am going to get a few mags anyway.

Post by **Bullseye** » Sat Feb 23, 2008 12:16 am

Installing a magazine is only necessary for a Mark III 22/45. You mentioned having a Mark II 22/45. The Mark II 22/45's hammer and sear work without an empty magazine installed in the pistol.

This is the 22/45 that was in the boating accident and had the lower magazine release locking spring tab break when the pistol fell - right?

The bolt should move smoothly with the magazine out and the mainspring installed.

Midway shooter's supply is having a sale on Ruger Magazines this month and the 22/45 version is going for $15.29 each.

Can you post a picture of your frame with the receiver off? This way I can look and see if all is in place properly.

R,
Bullseye

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 12:41 am

I will post some pics in the mourning, this is the one from the boating accident.

Post by **Bullseye** » Sat Feb 23, 2008 6:19 am

I look forward to seeing the pictures later.

Did you make a new lower frame tab using epoxy? That's what I would have used.

R,
Bullseye

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 7:17 pm

I am using epoxy for that but I broke the old one off and am going to re do it. But I want to make sure thats my only problem first and get the hang of reassembly because I want to do some upgrades also. Here are my pics.

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Post by **Bullseye** » Sat Feb 23, 2008 7:27 pm

Pictures are a little fuzzy, your camera is trying to focus on the computer. But it looks like the internals are in place. The sear long leg appears to not be in the hammer pivot pin groove, although it is in the rearward position. When the sear spring was installed, did you ensure that the long leg was place in the frame facing forward?

Then the leg is bent behind the hammer pivot pin as that is inserted.

I ask because the sear looks like it isn't being held tightly against the hammer. Which could be the source of the trigger not operating the hammer. Is the hammer cocking? Or, is it following the bolt forwards?

R,
Bullseye

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 8:05 pm

Here are pics of the short and long legs of the sear spring, I just figured out how to use my new camera and get it to focus LOL.

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 8:08 pm

What should happen when I pull the trigger should the hammer go forward even with the mainspring out or is that what the mainspring is for, to power the hammer?

Post by **Bullseye** » Sat Feb 23, 2008 8:08 pm

Oh yeah, I can see that much better. Everything appears installed correctly in those photographs. Can you engage the thumb safety with the hammer in that position? If so then the sear is being held in the proper position too.

{edit to add info} I posted my response at the same time you did, so I didn't see your question about the hammer. The hammer is powered by the mainspring. It won't function with out the mainspring installed. However you can manually move the hammer forwards, with your thumb, after squeezing the trigger.

R,
Bullseye

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 8:11 pm

Yep the safety works fine.

Post by **Bullseye** » Sat Feb 23, 2008 8:14 pm

Since the internals appear installed correctly, the problem may have been with the hammer strut. It may have slipped off of the mainspring cap and then it would drag inside the frame. Let's reinstall the receiver on the frame. Then flip the pistol upside down, squeeze the trigger, and push the hammer fully forward. Next install the mainspring housing. Ensure that when you slowly close it that you slightly tilt the barrel upward while holding the pistol upside down. That maneuver will align the strut with the mainspring cap as you slowly close the housing. Cycle the bolt a few times and you should be good to go.

R,
Bullseye

blacknwhite71 · Post by **blacknwhite71** » Sat Feb 23, 2008 8:24 pm

WAHOOO!!!!!!!!!! My ole lady thinks they are gonna have to lock me up after I just did my victory dance once I got it together. Thanks man I've been fooling with this thing non stop and I finally got it to work thanks to your knowledge and your patience. How can I donate to the site do yall have a donations page? Now its time to ad some performance parts to this rig.