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Tippmann 68 carbine issues

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Reb Cpl View Drop Down
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    Posted: 10 January 2008 at 1:03pm

this one should throw some of you younger boys off, but I'm hoping a handful of older guys will be familiar with the marker enough to help.

I've got a 68 carbine thats stock. Recently, when I put air through it, I have no leaks or anything, but when I pull the trigger, I can get maybe two or three shots, then the bolt will not return to re-cock, and I'll get the multi-shot, rapid burst that is similar to when you run out of air, I have to manually stop the bolt as it cycles back and forth.

Yes, my tank is full.

Suggestions?

And don't make me sticky this until I get an answer.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote GI JOES SON Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2008 at 1:30pm
i'm not too familiar with the marker so this might just be a pointless random guess. is it possible that the sear is worn down and thats why its not catching?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kurieitaa Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2008 at 2:09pm
Same here i dont have a 68 carbine but....sounds like any other tippmann problem, try checking the sear spring, it might be too weak? if not maybe the sear is worn like "gi joes son" suggested.

Edited by kurieitaa - 10 January 2008 at 2:13pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallen702 Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2008 at 4:21pm
  1. Are you dry firing? If so, put some rounds in it and see if it still occurs
  2. Is the velocity screw missing or backed out? Try screwing it in a litte
  3. Check the Sear and hammer for wear


Sounds like a loss of back-pressure issue which tends to plague Pro-series markers as they get older. They often won't fire properly unless there is paint in them.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Reb Cpl Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2008 at 4:23pm

I never thought it would make a difference if there was paint in it or not.

I'll try that this afternoon.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mack Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2008 at 6:09pm
In addition to what tallen said, check the hammer o-ring. 

Also check to make sure the plastic sight that snaps into the sight rails on top of the marker still fits snugly and has not developed a "wear groove" in the base.  This piece holds the linkage arm in place and binding can result if it is not snug.  (Please keep in mind that I'm trying to do this by memory; it's been a long time since I had a 68 carbine so if I've got old Tippmann's confused, I apologize.)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallen702 Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2008 at 7:15pm
Yep, Mack covered the other culprits I've forgotten about. It's been a loooong time since I've worked on a Pro-Series CVX system.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Reb Cpl Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2008 at 11:55am

Originally posted by tallen702 tallen702 wrote:

Yep, Mack covered the other culprits I've forgotten about. It's been a loooong time since I've worked on a Pro-Series CVX system.

Work on em eh? So if I can't get it functioning due to ineptitude I can send it out to you right?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallen702 Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2008 at 4:24pm
Yep. I can get any parts I need pretty quickly from ShortyBP. You handle shipping and cost of any new parts and I'll fix it.

Edited by tallen702 - 11 January 2008 at 4:24pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ShortyBP Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2008 at 6:49pm
Of course, while you're ordering replacement parts, you'll want to add in a new Air Tipps CAR stock, and Air Tipps Carry Handle, so you can make this your very own AR-replica 68 Carbine, right?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallen702 Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2008 at 9:12pm
Originally posted by ShortyBP ShortyBP wrote:

Of course, while you're ordering replacement parts, you'll want to add in a new Air Tipps CAR stock, and Air Tipps Carry Handle, so you can make this your very own AR-replica 68 Carbine, right?



NO SELLING ON THE FORUM!!!!

I keed! I keed!

But shorty does have the hook up on the last of the Air-Tipps goods.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ilford Rule Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2008 at 3:07pm
Schwat did air-tipps make? When did they go under (I'm assuming thats what they did)?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Reb Cpl Quote  Post ReplyReply Direct Link To This Post Posted: 14 January 2008 at 4:13pm

Originally posted by tallen702 tallen702 wrote:

Yep. I can get any parts I need pretty quickly from ShortyBP. You handle shipping and cost of any new parts and I'll fix it.

You may be hearing from me in the near future.

And Shorty.....I just might.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Enos Shenk Quote  Post ReplyReply Direct Link To This Post Posted: 15 January 2008 at 12:27pm
You forgot an obscure part that causes problems, the linkage arm.

If the little bugger is bent even the slightest bit, it can cause enough friction to screw up the recock.

Set it on a nice flat surface and eye it for bends. Check the slot it rides in for crud or obstructions.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallen702 Quote  Post ReplyReply Direct Link To This Post Posted: 15 January 2008 at 6:18pm
Originally posted by Reb Cpl Reb Cpl wrote:

Originally posted by tallen702 tallen702 wrote:

Yep. I can get any parts I need pretty quickly from ShortyBP. You handle shipping and cost of any new parts and I'll fix it.


You may be hearing from me in the near future.


And Shorty.....I just might.



Sure thing! It's going to be a month before I get the TF-5 torn down and re-built, so I might as well do something with my free time.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chaibill Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2008 at 11:14pm
May have got gummed up oil if it has not been used for a while.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote clownshooter Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2008 at 11:31pm
Did you ever get it working. I had that problem with my Pro Carbine. I replaced the CVX valve and no more problem.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Predator68 Quote  Post ReplyReply Direct Link To This Post Posted: 24 August 2009 at 2:46pm
Try changing out the rubber bump stop and your spring. This should get things back in order!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote thejunk00 Quote  Post ReplyReply Direct Link To This Post Posted: 29 January 2011 at 10:33pm
if you are using co2 you need a ciphon hose in your tank but i use compressed air on mine
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mack Quote  Post ReplyReply Direct Link To This Post Posted: 05 February 2011 at 11:20am
^^^  Several things.
1.  The 68 Carbine did not require liquid CO2.
2.  This thread is ancient--bumping it was not necessary.  (The original question was posted more than two years ago.
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