mcarterbrown.com  

Ask The Experts You ask the tough questions

Reply
 
Thread Tools Search this Thread
Old 10-30-2012, 11:16 PM   #1 (permalink)
Active Member
 
BassDude's Avatar
 
Join Date: Apr 2011

CCM Internals Help!

Hello,

I would call myself knowledgeable about my markers, how they work, how to maintain them, and how to troubleshoot them. However, this has me completely stumped. So, I come to you, hoping you can help.

After receiving my dream pump gun back from GA Gunsmithing, (the order was not completed, just for the record, so refinishing can't be the problem) I put it back together, in exactly the same setup I had before. Before, this setup was shooting consistently in the 290's over the chrono.

Now...I can't even get it to 200. Which is definitely a problem. I have ruled out everything I can think of as a cause for the problem. Reg (Palmer's Stab) is working as it should and as it did before. I put the same reg on a different pump and was able to achieve consistent readings in the correct fps range.

I had to replace the oring on the valve stem, but replaced it with N90 007 oring (tore it on disassembly). Also replaced the oring on the valve (N70 011). Valve is installed correctly, as it was before.

Air cannot be the problem. As stated before, I used this air system and reg on a different pump and achieved normal velocities (normal being around 285 fps).

Spring doesn't seem to be the problem either. I replaced the CCM main spring with a Maddman green from the aforementioned second pump that achieved normal velocity and dropped it in. This brought fps up to about 230 at the sweetspot of the reg, but no higher.

Bolt is no different than before, either is the hammer or body. I have no other ideas as to what it could be. I really hope someone here can help me out with this problem. I am completely out of ideas. Throw any ideas out, I am more than willing to try them. What really throws me off is that it worked perfectly before.
BassDude is offline   Reply With Quote
Old 10-31-2012, 12:21 AM   #2 (permalink)
I like Guns and Cigars.
 
maggot's Avatar
 
Join Date: Jul 2008
Location: MO

Not sure why it would have changed but you will need to go with a lighter valve spring or a heavier main spring to raise the velocity.
Before doing this, make sure you have a good paint/barrel match.
__________________


Otter Customs Paintball - - - - Straight Up Cigars - - - - My Feedback
maggot is offline   Reply With Quote
Old 10-31-2012, 12:28 AM   #3 (permalink)
It's All In The Reflexes.
 
Crimson Death's Avatar
 
Join Date: Nov 2008
Location: Clayton, NJ
Send a message via AIM to Crimson Death

CCM Fan
Brass N Wood Fan
The rear grip frame screw sometimes is too long and binds the IVG spring which can cause what you're describing.
Crimson Death is offline   Reply With Quote
Old 10-31-2012, 12:46 AM   #4 (permalink)
Ridiculous MCB Member
 
storminnorman's Avatar
 
Join Date: Dec 2007
Location: Pump Night

Just to make sure, is the bolt upside down? and check to see the hammer spring is seated inside the ivg and not on just the front.
__________________
T2 Slot Blockers for sale.
http://www.mcarterbrown.com/forums/d...t-blocker.html

New S6.5 model In stock Get yours now.
http://www.mcarterbrown.com/forums/d...t-blocker.html
storminnorman is offline   Reply With Quote
Old 10-31-2012, 01:48 PM   #5 (permalink)
Pump Battle Rager
 
raptor69r's Avatar
 
Join Date: Mar 2008
Location: El Paso, TX

Is the hammer sliding smoothly on the lower body? My last hydrographed body had a small residue inside and that was enough to slow down the hammer.
__________________
Raptor69r`s feedback link:

http://www.mcarterbrown.com/forums/f...-feedback.html

Quote:
Originally Posted by chopper duke View Post
Just smooth and easy like a toothless hooker!


raptor69r is offline   Reply With Quote
Old 10-31-2012, 05:17 PM   #6 (permalink)
Active Member
 
BassDude's Avatar
 
Join Date: Apr 2011

Quote:
Originally Posted by maggot View Post
Not sure why it would have changed but you will need to go with a lighter valve spring or a heavier main spring to raise the velocity.
Before doing this, make sure you have a good paint/barrel match.
Thanks for the help.
Paint/Barrel match is good. Deadlywind with matching freak insert.
I don't think there is anything lighter than a CCM valve. I Upgraded the spring, but still only got it to 230-ish.

Quote:
Originally Posted by Crimson Death View Post
The rear grip frame screw sometimes is too long and binds the IVG spring which can cause what you're describing.
I checked, grip frame screw does not protrude into the lower tube.

Quote:
Originally Posted by storminnorman View Post
Just to make sure, is the bolt upside down? and check to see the hammer spring is seated inside the ivg and not on just the front.
Checked this as well. All seems to be well as far as the spring/IVG goes.

Quote:
Originally Posted by raptor69r View Post
Is the hammer sliding smoothly on the lower body? My last hydrographed body had a small residue inside and that was enough to slow down the hammer.
I did clean out the lower tube with a swab kind of contraption. Hammer seems to be sliding smoothly in lower tube. The only thing I'm leaning towards now is the valve/stem. It seems there is a very small amount of space between the hammer and tip of the valve stem when the marker is cocked. I can try and get a picture. Could this be the issue?
BassDude is offline   Reply With Quote
Old 10-31-2012, 05:41 PM   #7 (permalink)
Total wreath
 
Join Date: Feb 2009
Location: Las Vegas

CCM Fan
Reg at 300 psi. Ivg 2 turns in?
shredxcam is offline   Reply With Quote
Old 10-31-2012, 06:29 PM   #8 (permalink)
I like Guns and Cigars.
 
maggot's Avatar
 
Join Date: Jul 2008
Location: MO

Quote:
Originally Posted by BassDude View Post
Thanks for the help.
Paint/Barrel match is good. Deadlywind with matching freak insert.
I don't think there is anything lighter than a CCM valve. I Upgraded the spring, but still only got it to 230-ish.
The green spring is the lightest on a maddmann kit. Try the blue one. Should solve your problem.
__________________


Otter Customs Paintball - - - - Straight Up Cigars - - - - My Feedback
maggot is offline   Reply With Quote
Old 10-31-2012, 08:30 PM   #9 (permalink)
Active Member
 
BassDude's Avatar
 
Join Date: Apr 2011

Quote:
Originally Posted by maggot View Post
The green spring is the lightest on a maddmann kit. Try the blue one. Should solve your problem.
I understand that. But, I am wondering why I would now need the blue one. I really shouldn't need anything besides the CCM main spring.

Is there anything that could possibly be wrong with the valve or valve stem to cause this problem?
BassDude is offline   Reply With Quote
Old 10-31-2012, 08:32 PM   #10 (permalink)
Old 'n Slow
 
Target's Avatar
 
Join Date: Apr 2006
Location: Syracuse, NY

Enough lube?

Rod says just a thin coat of oil on the hammer but my S6 needs more.
Not Automag more but maybe Spyder more.
Target is offline   Reply With Quote
Reply

  mcarterbrown.com » Paintball » Ask The Experts

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -4. The time now is 11:16 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO
© MCB Network LLC