Canadian Airgun Forum

The #1 Community for Airguns in Canada!
It is currently Mon Oct 25, 2021 11:42 pm

All times are UTC - 5 hours


The Canadian Airgun Forums are a place for people to discuss and learn about airguns and the airgunning sport in Canada. There are lots of discussions about airguns, airgun accessories, reviews, modification and repair information, airgun events, field target and free classifieds!

 

You need to register before you can post: click the register link to proceed. Before you register, please read the forum rules. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own pictures, and access many other special features. Registration is fast, simple, and absolutely free! To start viewing messages, select the forum that you want to visit from the selection below.






Post new topic Reply to topic  [ 13 posts ] 
Author Message
 Post subject: 2240 strange piercing
PostPosted: Thu Sep 23, 2021 8:31 pm 
Offline

Joined: Wed May 12, 2021 8:34 am
Posts: 89
My 2240 has suddenly started piercing the CO2 cartridge differently.
It used to make a "regular " hole in the cartridge, but for the last 3 it is making more of a pinhole.
I will try to capture a picture to show two side by side.
It doesn't appear to have changed the way it shoots, but I am concerned if it gets just a bit smaller it will not work at all.
Any ideas what I should check?
I have never had this gun apart yet.
I am planning to use it in the match at HAHA on Saturday so do not have much time and don't want it to fail during the match.
Thanks
Rob27 Image


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 12:09 am 
Offline
User avatar

Joined: Mon Feb 11, 2013 12:46 am
Posts: 4972
might be the valve stem piercing tip is getting worn down or not as pointy because you say it shoots the
same so your hammer spring must be ok then, the hammer is what pushes the valve stem
to pierce the CO2, either way if the hole is big or smaller your still getting the same amount of co2
pressure on a 2240 if it was blocked then that's deferent


Attachments:
fc680512c0d0985cf26e6c907c9a5668.jpg
fc680512c0d0985cf26e6c907c9a5668.jpg [ 92.2 KiB | Viewed 185 times ]

_________________
"A candle loses nothing by lighting another candle"

Image
Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 6:10 am 
Offline
Supporting Members
User avatar

Joined: Mon Jan 01, 2007 10:54 pm
Posts: 5872
Location: Saint John NB
Is your end cap bottoming out when tightening?

_________________
Jonathan

Moderator


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 8:34 am 
Offline

Joined: Wed May 12, 2021 8:34 am
Posts: 89
Ace wrote:
might be the valve stem piercing tip is getting worn down or not as pointy because you say it shoots the
same so your hammer spring must be ok then, the hammer is what pushes the valve stem
to pierce the CO2, either way if the hole is big or smaller your still getting the same amount of co2
pressure on a 2240 if it was blocked then that's deferent
Thank you for that excellent picture! That will really help me when I find some time to get inside it.
The hole is now smaller, but still looks sharp. My guess was that something had come loose and either the pointy bit was not being pushed as far forward as it used to, or the cartridge was not being held as firmly against it.
The end cap is not bottomed out. I have always been careful not to overtighten it but yesterday gave it a bit extra torque and the hole appears to be marginally larger- but so close that it might just be my wishful thinking.
I will not likely take it apart today since I do not have a backup and do not want to mess anything up before the match tomorrow. It is a fun shoot, but I still want to be able to complete it.
I will dig in after Saturday and see what I can find.
Thanks again!
Rob27


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 9:00 am 
Offline

Joined: Mon Aug 08, 2016 7:23 am
Posts: 4259
Location: Somewheres near the Atlantic
My guess is the C02 valve face seal. They tend to get hard over time, and retain it shape compressed. Forcing you to tighten more ( Hence why it opened up more when you tightened it more )


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 9:09 am 
Offline
User avatar

Joined: Wed Jul 26, 2017 7:01 pm
Posts: 3628
Location: GTA, ON
I noticed one more thing but not sure if that's just normal... The difference between the two tips of the co2 capsule, besides the hole size, I see the one on the right hand side looks messier than the left one which have a bigger hole and cleaner cut...

Anything around the pierce valve stem makes impact or contact on the co2 tip too?

_________________
CZ200s Color Laminated tuned to 10fpe
AA ProSport 177 Walnut in 12fpe
FWB300S Universal
HW 30s / 35e
HW 40+Extender / Scoped P3 / 45 / 70 / 75
Russian Izzy 46M
2240 14" barrel carbine


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 11:02 am 
Offline

Joined: Wed May 12, 2021 8:34 am
Posts: 89
YepYep wrote:
I noticed one more thing but not sure if that's just normal... The difference between the two tips of the co2 capsule, besides the hole size, I see the one on the right hand side looks messier than the left one which have a bigger hole and cleaner cut...

Anything around the pierce valve stem makes impact or contact on the co2 tip too?
Thanks.
I noticed that as well. I think that it is just cosmetic from the manufacturing process. I will look for a more pristine cartridge to use next to see if comes out differently.


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 11:09 am 
Offline

Joined: Wed May 12, 2021 8:34 am
Posts: 89
leadslinger wrote:
My guess is the C02 valve face seal. They tend to get hard over time, and retain it shape compressed. Forcing you to tighten more ( Hence why it opened up more when you tightened it more )
Hmm, it has been a while since I used this gun..... you may be onto something.

Thanks Leadslinger for this suggestion - now that you have said it , it sounds like such a logical thing that I should have thought of first.

I know that there are likely a dozen posts that describe where to get replacement seals, I will search for them.

Thanks all for your help and suggestions.

Rob27


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 11:16 am 
Offline

Joined: Mon Aug 08, 2016 7:23 am
Posts: 4259
Location: Somewheres near the Atlantic
Rob27 wrote:
leadslinger wrote:
My guess is the C02 valve face seal. They tend to get hard over time, and retain it shape compressed. Forcing you to tighten more ( Hence why it opened up more when you tightened it more )
Hmm, it has been a while since I used this gun..... you may be onto something.

Thanks Leadslinger for this suggestion - now that you have said it , it sounds like such a logical thing that I should have thought of first.

I know that there are likely a dozen posts that describe where to get replacement seals, I will search for them.

Thanks all for your help and suggestions.

Rob27


I'll make it easy.

https://crosman.ca/cen/g397-012-chamber-plug-face.html


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 12:41 pm 
Offline

Joined: Wed Aug 04, 2021 9:12 am
Posts: 37
Are the two CO2 cartridges pictured in the original post made by the same manufacturer?


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 12:50 pm 
Offline

Joined: Wed May 12, 2021 8:34 am
Posts: 89
Leonardj wrote:
Are the two CO2 cartridges pictured in the original post made by the same manufacturer?
Yes, from the same package of 25 Crosman cartridges.
I just looked at the two that remain in that package and see major differences on the end. One looks like it came from a completely different manufacturer, let alone from the same box.
I will try attach a pic.
Image


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 1:02 pm 
Offline

Joined: Wed Aug 04, 2021 9:12 am
Posts: 37
Rob27 wrote:
Leonardj wrote:
Are the two CO2 cartridges pictured in the original post made by the same manufacturer?
Yes, from the same package of 25 Crosman cartridges.
I just looked at the two that remain in that package and see major differences on the end. One looks like it came from a completely different manufacturer, let alone from the same box.
I will try attach a pic.

If the two powerlets in the original pic correspond with the two remaining powerlets, (one of each) it could well be that the one that looks like it came from a different manufacterer has a harder, or thicker, piercing seal.
I have seen this happen before. That is why I asked.


Top
 Profile  
 
PostPosted: Fri Sep 24, 2021 2:52 pm 
Offline
User avatar

Joined: Mon Feb 11, 2013 12:46 am
Posts: 4972
i was thinking the same thing Len
could be a bad batch, if you have any deferant Co2 id try that first
also im not a fan of the bottle cap style Co2's :|
one's on the left of your last pic

_________________
"A candle loses nothing by lighting another candle"

Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
News News Site map Site map SitemapIndex SitemapIndex RSS Feed RSS Feed Channel list Channel list

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group

phpBB SEO