G4 firing issues - Paintball Forum - Paintball guns and gear forums

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Old March 14th, 2012, 10:24 AM   #1 (permalink)
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G4 firing issues

Hi all,

I have a week old G4. I read and did disassemble it as soon as I got it. Relubed with HaterSauce. Tested it out with 500 rounds of JT elite, only thing available locally. Functioned flawlessly through all 500 rounds. Went out to the only local field. Played a few scenario games and their woodsball version of speedball. Last game walked out on the field aired up and went to test fire and got nothing but a puff of air.

I assumed this was the notorious bolt stick I had read about. Called it a day and headed home. I have since tore it down cleaned and very lightly lubed it again. Same thing. I read somewhere if this happened on the field to increase the dwell by 3 as a temp fix. Tried that and nothing. Sent ahead and reprogrammed back to defaults and then set ROF to 20 and set firing mode to Millenium. If I start shooting when it ramps up the gun will actually start firing.

Any thoughts or suggestions?
Chris
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Old March 14th, 2012, 11:23 AM   #2 (permalink)
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i'd still lean towards blaming lube, particularly if you have any on the back bumper.
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Old March 14th, 2012, 11:35 AM   #3 (permalink)
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i'd still lean towards blaming lube, particularly if you have any on the back bumper.
Back bumper? Are you referring to the cap that screws out the back with the 2 o-rings on it? If so that only has lube on the o-rings.
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Old March 14th, 2012, 12:07 PM   #4 (permalink)
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Have you checked your battery?
Try replacing it with a fresh name brand 9v and see if that helps anything

If hat isn't it, also try increasing your dwell
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Old March 14th, 2012, 12:31 PM   #5 (permalink)
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Have you checked your battery?
Try replacing it with a fresh name brand 9v and see if that helps anything

If hat isn't it, also try increasing your dwell
It is a brand new battery. Both batteries do the same thing. I had increased the dwell from 12 to 15 and that is when it started shooting as it ramped up. Both dwell setting 12 and 15 do exactly the same thing.

Should I increase the dwell higher. Also there is an ABS dwell as well that I have not touched.
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Old March 14th, 2012, 12:32 PM   #6 (permalink)
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ABS dwell is Anti Bolt Stick
I'd put it on its highest setting if it's not already and try that

Also check or what Riddler suggested
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Old March 14th, 2012, 12:58 PM   #7 (permalink)
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I'm not sure what Riddler is calling the back bumper?
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Old March 14th, 2012, 01:09 PM   #8 (permalink)
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the rubber o-ring in the back of the back cap that would be directly behind the bolt (not the one on the shaft it rides on). Any lube on that o-ring makes for bolt stick, in my experience.
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Old March 14th, 2012, 02:31 PM   #9 (permalink)
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Quote:
Originally Posted by TheAznInvazn View Post
ABS dwell is Anti Bolt Stick
I'd put it on its highest setting if it's not already and try that

Also check or what Riddler suggested
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Originally Posted by Riddler236 View Post
the rubber o-ring in the back of the back cap that would be directly behind the bolt (not the one on the shaft it rides on). Any lube on that o-ring makes for bolt stick, in my experience.
TheAznInvazn,

The ABS Dwell is disabled by default. I will set it to 3 which is the highest setting.

Riddler236,

There are 2 orings on the dump valve plug, both which the manual says to lube. Are you talking about the back one, the one I assume seals the the back of the gun?
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Old March 14th, 2012, 02:48 PM   #10 (permalink)
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There are 3 o-rings on the dump plug.

1) the one the bolt rides on. lightly lube this one
2) the one in the area of the cap that threads into the body. lightly lube this one.
3) the one recessed into the the back of the cap that the back of the bolt 'bumps' into and rests against on the rearward stroke of the gun's firing cycle. this is the o-ring that can cause bolt stick if it is lubed.
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Old March 14th, 2012, 02:50 PM   #11 (permalink)
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I thought that might be what you were talking about. I took out the cap and bolt to make sure the back of the bolt and the bumper oring were lube free and now it doesn't shoot at all.

Any chance I am under lubricating it?
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Old March 14th, 2012, 03:01 PM   #12 (permalink)
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From what I've seen, probably not - that's usually more likely to cause leaks.

Without making any big adjustments that could be harmful to your solenoid, are you sure that your regulator is set properly?
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Old March 14th, 2012, 03:11 PM   #13 (permalink)
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Was set at about 280 and havent touched it

APPEARS TO BE FIXED. Set the dwell up to 20 and it ripped away. Degassed and set dwell back to 12 and aired up again and it still rips. Think a little more break-in and it will be fine.


Thanks to All who helped.

Last edited by G4frost; March 14th, 2012 at 03:18 PM..
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Old March 14th, 2012, 03:17 PM   #14 (permalink)
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I might try giving the regulator some small adjustments, perhaps even a tear down/re-lube, in case it decided that it no longer likes you. If we can rule out battery, bolt stick and regulator, that doesn't leave much other than the board and solenoid to blame.
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Old March 14th, 2012, 03:25 PM   #15 (permalink)
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Riddler if yo didn't see my last post edit.

It is working again now.

Thanks
Chris
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Old March 14th, 2012, 04:46 PM   #16 (permalink)
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Ah, good deal. Hopefully it was just a bit of bolt stick and won't be coming back.
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Old April 23rd, 2012, 11:08 AM   #17 (permalink)
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It's still broke

Well I thought the gun was fixed. If I get lucky I get about a hopper through it at the chrono and then when I get on the field it quits shooting again.

I have been through every suggestion I can find on the Internet. Yesterday at the field I tore down the reg and it shot again. When I got to about 265 fps something popped and it quit shooting again. I tried a solenoid tear down today and the piston will not come out.

Any more thoughts? Oh yeah waiting on a call back from DP.
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Old April 23rd, 2012, 12:52 PM   #18 (permalink)
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Talked to DP

So DP's first suggestion was the one thing I hadn't tried. The back O-ring. It fired the 1st time and every time thru 2 hoppers. This is the most it has shot since I started having problems.

Also everything is set back to defaults. So seems to be functioning again. Guess we'll see if it works at the field in 2 weeks.
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Old April 23rd, 2012, 01:51 PM   #19 (permalink)
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Damn. glad i got the rail instead of a G4..no offense.
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Old April 23rd, 2012, 02:52 PM   #20 (permalink)
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Damn. glad i got the rail instead of a G4..no offense.
And this is actually rather common. One of the biggest reasons why you constantly see us trying to steer people towards the Rail or Aura instead of the Gx.
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Old September 5th, 2012, 08:03 PM   #21 (permalink)
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leave the thick grease on and add a drop gold cup or something thin. I think its a board issue because when I shoot paint eyes on I don't get bolt stick but when I shoot air eyes off I get bolt stick
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Old September 6th, 2012, 12:56 PM   #22 (permalink)
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thread is from april, considering the OP has not come back, im going to guess it has been fixed
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