crosman 2200 M pump question

[luckyeddy10040]

I recently picked up 2 of the 2200M rifles at a local shop. One held air and was $20. The other one looked nicer and I could see the plastic part that attaches to the pump lever had separated from the metal part that has the felt washer and piston on it. I paid for the one that worked, and as I was leaving the owner said why don't you take the other one too, I can't sell it if it doesn't work.
I took that one apart and snapped the sections back together, so now it works too.
Question: is it common for these parts to become separated?  I've had other crosman pumpers with similar parts (1377)  and had never run into this. The plastic section did not appear cracked, but it initially took a little force to push it out.

[Mzq284]

You can just replace the assembly with the one piece aluminum piston from a Crosman 362. There's a thread here somewhere that covers just that. I'm going to get started on converting 2 766s to 2200s in the next week, I'm going to try it. One of them has a one piece steel piston, I'll keep that one.

[luckyeddy10040]

Good to know. I bought these on a whim because they were cheap, but I'm starting to really appreciate them.

[Blowpipe Sam]

I spent several months modifying a Crosman 2200 to increase velocity.  The addition of a Ronno6 O ring sealed brass bolt probe and the one piece aluminum piston of the 362 increased velocity with 14.3gr CPHP from 583 fps to 630 fps at twelve pumps.  The 2200’s are bit easier to work on than a 2100. They lack the BB magazine and some associated parts inside.

[Ronno6]

Nice find!
I'm green........


Sometimes after sitting for some time, oil will cause the pump cup to stick to the front of the valve.
Then the plastic will pull out of the metal rod......
It is curious, tho that the plastic didn't snap back into the metal rod when the pump arm was closed.

How did you get the metal rod out? Did you push the valve out?

[luckyeddy10040]

U had to completely take it apart and push the valve and assembly out with a cleaning rod. You gain knowledge by taking something apart, you gain wisdom in putting it back together. I had never taken an air gun apart this far, but it was fairly simple all things considered.

[Mzq284]

Good to know. I bought these on a whim because they were cheap, but I'm starting to really appreciate them.

If you stop appreciating them I know a guy that will give them a good home