Canadian Airgun Forum

The #1 Community for Airguns in Canada!
It is currently Tue Nov 19, 2019 11:57 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  [ 7 posts ] 
Author Message
 Post subject: Crosman Phantom probs
PostPosted: Mon May 05, 2014 12:06 am 
Offline
User avatar

Joined: Sun Sep 01, 2013 10:26 pm
Posts: 1564
Location: Hamilton
I was shooting my Phantom today and it seemed to be having problems pushing the odd tight fitting pellet out of the barrel
Its not shooting as powerful as it has been up until now
The only 2 things I can think of might be the breech seal or maybe the piston seal... how do I figure out which it is?
Thx
Mike

_________________
Weihrauch HW97KT .22 + Hawke Varmint 4-16x44 SF
Crosman357 .177
Crosman Phantom .22
Crosman 2240
Daisy 953
Ruger Green Mountain Laminate 10/22+Hawke Airmax 3-9x40 AO
1950 Russian SKS
Remington 783 30-06 Hawke Vantage 6-24x44 SF


Top
 Profile  
 
PostPosted: Mon May 05, 2014 2:19 am 
Offline

Joined: Sun Jul 28, 2013 8:34 pm
Posts: 1155
Location: Vernon BC
Only way I can think of is to tear it down. Check for any knicks or tears. Breech seal tissue paper test too.

I shot my phantom the other day after probably over 5 months of gathering dust and I forgot how smooth and sweet it is!

Have you tried the piston sleeve mod? I know I was recommended to use something more durable, but before I was recommended, I used thin aluminum (pop can :lol:) And rolled it over the spring into the piston. Its a super smooth shooter and I can't believe how it transformed my phantom!

It really is just a straight back recoil now. No twang. I was recommended brass sheet btw


Top
 Profile  
 
PostPosted: Mon May 05, 2014 2:20 am 
Offline
Supporting Member 2009
User avatar

Joined: Sun Dec 24, 2006 12:37 am
Posts: 3468
Location: Out There
If you feel air leaking out around the barrel block, it's the breech seal. It may not be a seal at all- springs wear out over time as well.

You will most likely have to take it apart to determine the issue.

_________________
www.scopesandammo.com/storefront



Please note: I do not conduct business through Private Messages (PM's) in online forums. Please do not send a 'PM" with a business-related question.


Top
 Profile  
 
PostPosted: Mon May 05, 2014 3:47 am 
Offline

Joined: Fri Jan 08, 2010 6:58 am
Posts: 887
Have you tried other pellets?
not Crosman!
JSB or RWS...are a good choice.
If you have a chrony or know someone, then you will see if you have a real problem.
Other wise, take it apart..
Spring Compressor...Canadian Tire...Pipe Clamp...
http://www.canadiantire.ca/en/pdp/maste ... 2dPgK1dU7Q
and pipe..http://www.canadiantire.ca/en/pdp/pipe- ... 2dPp61dU7Q

No need to reinvent the Wheel.

_________________
President and CEO of Procrastinator Unlimited.

Arsenal..
Kraft Marshmallow Pump and Shoot Rifle.
GoodYear Gatling Gun rubber-band shooter.
PEI Potato PCP Rifle.

Glass ..12" Dobsonian Reflector.
Shooting for the Stars.


Top
 Profile  
 
PostPosted: Mon May 05, 2014 4:54 am 
Offline
User avatar

Joined: Sun Sep 01, 2013 10:26 pm
Posts: 1564
Location: Hamilton
I got it from a member on the forum and it shoots really well
He did a lot of tuning on it, macari lubed, recrowned, trigger upgrade etc and its always been around 460 and very smooth
Ill shoot one over the crony later
Jsb rs and Hobby's didn't have a problem but Crosman Premier HP and RWS HPs did
Thx for the spring compressor links, I'll go grab those today

How do I tell which breach seal I have
I partially pulled it out and it goes in pretty deep
It has a groove on the outside of the seal thats less than half if its depth too

_________________
Weihrauch HW97KT .22 + Hawke Varmint 4-16x44 SF
Crosman357 .177
Crosman Phantom .22
Crosman 2240
Daisy 953
Ruger Green Mountain Laminate 10/22+Hawke Airmax 3-9x40 AO
1950 Russian SKS
Remington 783 30-06 Hawke Vantage 6-24x44 SF


Top
 Profile  
 
PostPosted: Mon May 05, 2014 9:31 am 
Offline
User avatar

Joined: Thu Oct 04, 2012 10:27 am
Posts: 1108
Location: Thunder Bay,On.
I also have the phantom 500.My gun shoots the h&n pointed pellets at the same speed as the tighter fitting crosman pointed even though the h&n's are heavier than crosmans.So I end up with more fpe.I only use h&n's or jsb's.H&N pointed are 15.74 gr and the crosmans are 14 .3 grain. but like I mentioned the Crosmans are a very tight fit.Try different pellets

_________________
The cave you fear to enter....holds the treasure you seek


Top
 Profile  
 
PostPosted: Thu May 08, 2014 2:38 am 
Offline

Joined: Sat Jan 25, 2014 9:16 pm
Posts: 1271
Location: United States
It should take the standard breech seal #B12-00-14.
Hard to say with 500fps gun since I've never played with any lower powered versions, but if it has a hole in the piston to drop power to 500 then as pellet weight goes up and/or fit is tighter it would drip power since either of those will bleed more air out the hole. I would try JSB pellets because they have very thin skirt, and get the smallest head diameter that works for your gun. They usually make the standard size, then .001" larger and so on. I just buy the standard size myself which so far seems to work well on everything.
I suppose as a test you could shoot a pellet into water or a pillow or something so it's sized, then shoot it again to see the difference.
The oem main seals typically all leak due to damage from the factory, but if it was tuned I suppose that was replaced. A new seal could also be damaged if not done right, or if the original seal reused it may have twice as much damage, it happens...
I don't typically test main seals for leakage, but it is possible if you block the piston hole, assuming you have one. I generally replace the seal and assume good if the crony reads good. Something else to consider is sizing the seal to match the gun. Normally the seal is a very tight fit which costs power, but in a 500fps gun I'd assume that like a tight pellet it will cost even more power. If you're shooting 460 then 500 should be within reach with a good seal.

M3ga3T:
I'm not sure I'd trust alum to hold up in there, plus it would almost certainly increase friction. A sleeve also needs to be secured well or it'll simply work its way out, but you would notice that so I assume you did it right. I use plastic myself, like from a 2-liter bottle which is extremely tough. It's slick as can be when greased so should make more power, should be a better fit since those bottle are ~.011" thick so it should be quieter/smoother to shoot, and it's got to be easier to make. I make it a tight fit so it's locked to the piston as if the piston were plastic coated. I can explain better and/or how if need be, just pm me.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 0 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:  
cron
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