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Old 01-11-2011, 11:18 PM   #1 (permalink)
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New (old) CCM S6 Photos and Regulator Leak Question

As I was trying to decide whether I should buy a T2 or an S6.5, I came across a good deal on a used S6, so I went for it. Gun is the older body style (separate vertical regulator adapter). SN is S6 137. I don't know how old that makes it, but maybe someone else can help date it.

It came with a CP mini on/off ASA and rail. I put on the Deadlywind barrel and the lever lock for the feedneck (I still had it lying around from my last S6). It has the 86 degree frame and the delrin panel grips. I have a set of Hogue wrap-arounds ordered. I had them on my other S6 and loved them.

The gun is in good shape, even with obvious signs of wear. I did a complete teardown and it internally looks really good. Two things I noticed were that the pump return spring is weak (and doesn't respond to stretching), and the back of the trigger is a bit worn from the AT cam, but other than that nothing else really looks too bad.

Pump stroke is good and everything functionally seems to be in order. Unfortunately, when I aired it up I heard there was small leak from the bottom of the regulator, coming from around the threads on the pressure adjustment screw. I took apart and cleaned/lube the reg. Nothing seemed damaged or out of place, and the leak continues.

Two questions:

Any suggestions on how to repair the regulator?
Is it possible to buy a replacement pump return spring?

Here are some photos I snapped of the gun:











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Old 01-11-2011, 11:37 PM   #2 (permalink)
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Correct me if I'm wrong, but no air should be going past the regulator piston o-ring, so that is probably what I need to replace, right? Anyone know what size it is?
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Old 01-11-2011, 11:46 PM   #3 (permalink)
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Call Melissa @ CCM. She will help you out or Rod will talk you thru it.
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Old 01-11-2011, 11:56 PM   #4 (permalink)
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The return springs are listed on their site. As for the leak, if a new piston oring doesn't help, you can replace the middle of the body. So I've heard.
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THE-SHOOTIST Anyone chubbin' like me for this?
mailmanmike Since Monday! That's more than 4 hours though, so according to those cialis ads I should see my doctor.
tlane77 I think for a non-chemical chubby it's 6 hours before its time to see a doctor. So you should be good for another couple hours.
splattttttt I wasn't goin to google "chubbin" because I assumed it had to do with fat. The lard type, not the fun stuff. But what ever feelings Jeff's experiencing, then they must be of the fun like stuff...
tlane77 He's got a woody for your woods.
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Old 01-12-2011, 12:43 AM   #5 (permalink)
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Piston oring will fix it assuming the piston isn't worn out. It's a fairly common o-ring since a proshop just whipped out some industrial oring kit for mine and fixed it on the spot for me one time when my reg was acting funny at the field.

You can also rebuild the entire reg for I believe $22 shipped, a great deal if you ask me. You could also just replace the piston for $6 and comes with an oring on it, this

CCM has the return spring also.
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Old 01-12-2011, 01:42 AM   #6 (permalink)
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Quote:
Originally Posted by Ir0nExpress View Post
Piston oring will fix it assuming the piston isn't worn out. It's a fairly common o-ring since a proshop just whipped out some industrial oring kit for mine and fixed it on the spot for me one time when my reg was acting funny at the field.

You can also rebuild the entire reg for I believe $22 shipped, a great deal if you ask me. You could also just replace the piston for $6 and comes with an oring on it, this

CCM has the return spring also.
Agreed, but feel inside the wall of the reg body where the piston rides, and check for warping, or ano wear.
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THE-SHOOTIST Anyone chubbin' like me for this?
mailmanmike Since Monday! That's more than 4 hours though, so according to those cialis ads I should see my doctor.
tlane77 I think for a non-chemical chubby it's 6 hours before its time to see a doctor. So you should be good for another couple hours.
splattttttt I wasn't goin to google "chubbin" because I assumed it had to do with fat. The lard type, not the fun stuff. But what ever feelings Jeff's experiencing, then they must be of the fun like stuff...
tlane77 He's got a woody for your woods.
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Old 01-12-2011, 08:03 AM   #7 (permalink)
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Thanks everyone.

Anyone know what size o-ring it is? I'll try replacing it and see if that helps.

I'll have to give CCM a call about a new spring.
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Last edited by Talfuchre; 01-12-2011 at 03:32 PM.
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Old 01-12-2011, 03:29 PM   #8 (permalink)
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Look in the stickies above - the S6 manual has the o-ring size you need.

I looked it up - N70-113


Replace it - buy a few extras - lube it with Hater Sauce Marmalade and be done with it.

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Old 01-12-2011, 04:40 PM   #9 (permalink)
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Thanks TF. I also looked it up and found that it was a 9/16" ID x 3/32" Wide o-ring, and bought one at the hardware store today. Put it in and lubed it up and it works great now. No leaks! Set it to 300psi with my handy digital pressure tester and I look forward to shooting it this weekend!
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