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dissassembly/reassembly of the P-22

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dissassembly/reassembly of the P-22

Postby 1917-1911M » Tue Aug 15, 2006 11:12 am

How to disassemble/reassemble a P-22 Part 1 (pictures)

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07-17-2005, 09:16 PM #1

1917-1911M

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Location: Indian Springs, AL

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How to disassemble/reassemble a P-22 Part 1 (pictures)





The P-22 ready for disassembly, safety on, the short barrel model without the barrel stabilizer. With exception of removal/reassembly of the stabilizer, both pistols 5 or 3.4 are the same.







Remove the magazine and any round in the chamber. Take all ammunition to another location so you cant possibly forget what you are doing while working on the pistol and no one can come along an load a round while you went for some ice tea.







After the magazines are removed and any remaining rounds removed, visually check the pistol for any rounds. If there are no magazines and no round stuck in the chamber, it is empty and unable to fire.







The next step is to pull the takedown lever down as shown in this photo, it may be easy or hard, but it will pull down this far and no more. Do this by placing thumb and finger on the lever and pull down while wiggling from side to side.







With the takedown lever down, cock the hammer, pull the slide rearward just enough so that the slide grooves clear the frame rails, then lift the rear of the slide up slightly and push the slide forward and off the end of the barrel.







This photo shows the slide off while the slide spring and guide bar are still in place. The same position they will have upon reassembly.







Next the frame would be removed from the polymer housing. In order to accomplish this, use a drift to remove the two pins that hold the frame in the housing. The front pin is slightly longer than the rear one. Reassembly is opposite. A light hammer may be necessary with a tight new gun. The more you remove and replace them the looser they get. If tightening ever becomes necessary insert a scribe in each end, tap lightly to expand the pins as required.







The frame is now free to be pulled up out of the polymer housing, however before you do place your thumb over the slide stop mechanism and the small spring that pivots it or it will fly out and that little spring is easy to loose. Some folks insert the pistol into a large baggie at this point to catch the potential flyaway part.









Your disassembled P-22 will now look like this and this is as far as the Walther Co. recommends you disassemble it. At this point there is hardly anything that you cant clean and really no reason to take the pistol apart further except to fix some broken part.







Here is a photo of the top of the pistol, slide removed showing the relationship of components of assembled pistol. end part 1
1917-1911M
 
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Joined: Wed May 10, 2006 7:52 pm

Postby 1917-1911M » Fri Oct 20, 2006 12:40 pm

Here are some modification pictures that will make your P-22 100%



Image



One of the first things that needs to be checked is the top front edge of the trigger bar ears. These can be seen easily with the slide removed. Pictured above is the left ear from a new P-22. Under the 1/16 marking is the edge of the trigger bar we are concerned with.



As this ear hits the underside of the slide each time you fire the pistol it will takes bites out of the zinc slide. The trigger bar ears are designed so that two ramps on the underside of the slide disconnect it from the sear/trigger each time you fire. The solution is to round and polish the front edge of both ears.



Image



Above is a picture of the trigger bar ears as rounded and polished on the front top edge. They will now do minimal damage to the underside of the slide. I also slightly spread mine so they engage the total width of the ramp area on the bottom of the slide.



Image



Pictured above is the original style hammer from a P-22. In late 05 the hammer tip was reprofiled but was not done right by Walther and the problem of the tip hanging in the small valley between the breech block and safety bar remains. This is what hangs up the slide. The cure is to reprofile you hammer tip so that it no longer has a tip and instead smoothly spans this small valley.



Pictured above is a reprofiled hammer tip. This is done by sanding the hammer tip using 320 grit emery paper until this new profile is established. The tip is flattened to eliminate any tip then slightly rounded so that it will not catch on anything under the breech. Much more detail is presented on this at RimfireCentral.com. Walther section. The tip as pictured will now be polished and you will have no more slide hang-ups. Remove too much material from the face of the hammer and you will have to modify the cock notch on the hammer so that the slide will continue to cock the hammer. Ill stop here as Im not sure photos will even work on this Forum.



The bottom line, while the end user shouldnt have to be making these modifications, they will make your P-22 100%. Apparently Walther engineers have been impressed enough with my work on the P-22 that they have contacted me, have the pistol in hand with the broken frame at 27,500 rounds with no wear whatsoever and my mods and they want to discuss the P-22 and what it needs mod wise. Im also adding a wish list like better sights, etc. So perhaps we will shortly have a perfectly functioning P-22 right out of the box. Safe shooting M1911
1917-1911M
 
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