breaking down a 13xx

[oconeedan]

Seeing your 13xx mods have interested me, I have a 1322 on the way.  I also bought this used steel breech, along with a discovery bolt.
http://www.ebay.com/itm/121520247668
I'm new to this, so I hope I am off to a good start.
Where can I find instructions for breaking down one of these pistols?  Or is it a matter of just taking it apart?
I am a maintenance tech, and everything in my house has been taken apart at one time or another, usually without any guidance.  Most of the time I can get it back together.
I'll shoot through a chronograph to get started, along with a few test targets, to get a base line.
Then install the steel breech, and while at it I'll look for any burrs inside and most likely work on the trigger.

I think this will be an evolution.  Not all at one time.
Thanks for your input.  Dan

[mafatone]

Hit YouTube. All kinds of video walk through there.

[BenjiHunter]

These videos are pretty good.

[N6CRV]

Hello Dan, you will not have any trouble taking it apart. I would change the solid stainless pivot pin, as you will be taking it apart a lot LOL. I think 1/2 the fun is the mods that you can do. There is a post on here about using two small magnets for the trigger and Sear. It works good and gives nice trigger pull. You should be able to find it. Enjoy!!
Don

[oconeedan]

Thanks!  You Tube, I should have thought of that.
Magnets for trigger parts, interesting.  I'll find it.
Thanks Dan

[N6CRV]

Thanks!  You Tube, I should have thought of that.
Magnets for trigger parts, interesting.  I'll find it.
Thanks Dan

Here is the link. http://www.gatewaytoairguns.org/GTA/index.php?topic=78803.msg750675#msg750675

[brzryder]

The one thing you have to remember when tearing the 13xx and 22xx guns down is about the little breech screw easist way is for the little screw first in last out. the tubes on these guns are run thru a punch press so the holes are not what they would be if machined in and i found out that taking loose the big screw at the rear first lets off pressure on the little breech screw same way going back together put the little screw in before the big one

[Gertrude]

there a 2 different steel breeches from crosman.
The only difference in them is the location of the tiny screw hole .

one has the screw hole FORWARD of the bolt probe, (just behind the barrel) and visiable with the bolt pulled into the cocked position.
the OTHER has the screw hole UNDER the bolt probe, (Rearward Hole), with the bolt in the cocked position.

First you need to determine if your guns valve tube has the corresponding hole in the proper position for your new steel breech.
If your breech is the type with the FORWARD hole and it mounts to your valve tube, you are fine.
If your breech is the type that has the hole UNDER the tip of the bolt probe, (when the bolt is in the cocked position), then you will also need to used a NOTCHED Striker.

DO NOT use a NON-Notched striker if you have the "REARWARD HOLE" type breech.

[Tater]

The videos Stephan posted are very good. They were the first thing I though of when I read your first post, searched for 10 minutes for them, then scroll down and see he already posted 'em. 

[BenjiHunter]

The videos Stephan posted are very good. They were the first thing I though of when I read your first post, searched for 10 minutes for them, then scroll down and see he already posted 'em. 

Didn't have to look for them.
I had them book marked.

[oconeedan]

Ya'll are great!  This will get me started.  I do thank you!
Dan

[oconeedan]

there a 2 different steel breeches from crosman.
The only difference in them is the location of the tiny screw hole .

one has the screw hole FORWARD of the bolt probe, (just behind the barrel) and visiable with the bolt pulled into the cocked position.
the OTHER has the screw hole UNDER the bolt probe, (Rearward Hole), with the bolt in the cocked position.

First you need to determine if your guns valve tube has the corresponding hole in the proper position for your new steel breech.
If your breech is the type with the FORWARD hole and it mounts to your valve tube, you are fine.
If your breech is the type that has the hole UNDER the tip of the bolt probe, (when the bolt is in the cocked position), then you will also need to used a NOTCHED Striker.

DO NOT use a NON-Notched striker if you have the "REARWARD HOLE" type breech.

Looking at the photo of what I bought, it looks like I have the forward hole, right?  It is in the link in my first post.
Thanks, Dan

[BillK]

As far as I know all 13xx .(177&.22) air tubes only have the front screw location.  They use the AS2250-A013 steel breech which has the front screw location.
The 22xx guns have both front & rear screw locations & use the AS2250-025 steel breech which has the rear screw location.
There is also a short steel breech 2300-047 which is a rear screw location steel breech.

I can't tell if the breech you bought has the front or rear screw.  If it is the rear screw, either sell it or set it aside for your next 22xx gun.  Order a breech from Crosman w/front screw loc. (AS2250-A013). Appx.$30.00

[Tater]

Didn't have to look for them.
I had them book marked.

Me too.....now.

[avator]

Here's one hint/warning for you.... when taking the trigger group off of the tube... hold it firmly against the tube until the screws are completely out. Then hold the gun in the "shooting position and slowly remove the tube. There is a tiny little screw and steel ball in there for the safety that likes to take a flying leap. I usually take them apart over a white or light colored towel. If it does come out, the ball goes back in first then the spring.  Good luck and let us know how it's going.

[longhunter]

The trick I use is to super glue the ball to the spring. When reassembling the trigger group, pack the safety ball/spring slot with grease. That'll keep that little sucker in place, when you decide to take it apart, again.

[ToRmEnToR]

Good Info

[oconeedan]

I will be paying attention.  I use the grease trick at work, where I work on small servo motors.  Just being aware of that spring and ball, we'll be ok as long as I don't forget.
I hope to get things started this next weekend.
Dan

[avator]

Good call Scott. I hadn't thought of that.

I do research when anticipating a build/mod and bookmark things like videos and posts like this. When it comes time to do the job, I review the stuff I found useful before I start. I keep the laptop or a printout handy on the work bench. A camera is a good thing to have around as well. A quick picture of how things were is a great tool.

[Willydog]

I worked on mine this weekend, replacing the valve and what not for the first time. Lots of videos on dis-assembly, didn't find much on reassembly. It would be nice to see a video that addresses all the little tips and tricks.

I replaced my roll pin with a stainless pin and found that one of the tube holes was slightly burred, I'm assuming to help hold the roll pin better. Took me a bit to figure it out, find the right drill bit, etc.

But there are A LOT of videos on youtube about these guns, the problem is wading through them to find the useful ones.