chuffing, bolt stick and dropoff oh my!!

[cyrus-the-virus]

Ok so I pull out my automag today and I air it up, I get very erratic firing (it's shooting 2-3 times then chuffing a few times then shooting right again)

so I tear it apart and lube the hell out of it, it helped but it was still firing erraticly. So I take it apart and lengthen out the sear rod and it fixes the problem for about the first 20 shots. Now if you don't pull the trigger VERY hard it chuffs.

so I tear it apart and shorten the rod. It works great once again, for about 35 shots and then the sear stays back all the way, but it won't shoot for about 20 seconds-3 min then out of nowhere it will shoot and the trigger will function fine again for about 2-3 shots.

So I tear it apart yet again and put the rod length right in the middle of the last two and it works good at the chrono for like 70-80 shots (and very consistant I might add.) Then I take it out on the field and I get bolt stick every other shot.

At that point I gave up because I was out of air and so was the field.


I think half of my problem was my tank, my conquest only does 600-650 output max, any higher than that and the tank won't stay on. I'm open to suggestions.

[luke@york]

its ya tank pressure, you need 800plus psi ideally, screw a dynoflow reg in to the bottle then youll be sorted, there doing deals on reconditioned dynoflows at the moment at centreflag

hope this helps
luke

[Russ]

what mag you talking about here? The more info you give, the more help you'll get.

FWIW, I bought a Conquest for my Emag. I promptly gave it to my Son to use with his 'cocker. My Mags all carry Flatlines now.

Hmm, I wonder if you get a "high pressure kit" for a Conquest? Call MacDev in Cali. 951-359-4859

[CaliMagFan]

tighten field strip screw

[Nick E]

Mine was acting like that last time I played...erratic velocity and fairly bad shootdown/chuffing...Anybody know if PMI tanks have issues feeding an x valve(which I fixed BTW)?

[cyrus-the-virus]

what mag you talking about here? The more info you give, the more help you'll get.

FWIW, I bought a Conquest for my Emag. I promptly gave it to my Son to use with his 'cocker. My Mags all carry Flatlines now.

Hmm, I wonder if you get a "high pressure kit" for a Conquest? Call MacDev in Cali. 951-359-4859

X-valve w/ e-mag on/off
ULE body
level ten w/ silver spring
intelli frame

The field strip skrew is as tight as it can go.

I'll call them.

[ProblemKinder]

don't over tighten the field strip screw. it's designed to be hand tightened, and allen wrench loosened. i used to over tighten my field strip screw all the time and would wonder why my gun wouldnt operate properly. everytime i finally figured it out I felt like an idiot cuz i had done it so many times already.

[athomas]

How long have you been using the long silver level 10 spring? Perhaps it is weakened. Try the red spring to see if it helps.

Your problem definately sounds like bolt stick. Try the next larger carrier size. Do this with the same oring and no shims installed.

The input pressure you are using is definately low, especially if you are running the longest grey spring.

[cyrus-the-virus]

How long have you been using the long silver level 10 spring? Perhaps it is weakened. Try the red spring to see if it helps.

Your problem definately sounds like bolt stick. Try the next larger carrier size. Do this with the same oring and no shims installed.

The input pressure you are using is definately low, especially if you are running the longest grey spring.

First time I've ever used it. AGD tuned up my valve for me.

so my problem is just input pressure?

[athomas]

Your biggest problem is probably the lack of air pressure.

AGD does generic tuning. You can probably do better yourself, because you are tuning with the complete setup that you are going to be using. I would remove the shims and use the largest carrier that doesn't leak.

[Russ]

First time I've ever used it. AGD tuned up my valve for me.

so my problem is just input pressure?

Me thinks so

[luke@york]

i had to get rid of my pmi bottle when i got my mag as it wouldnt feed the xvalve properly, i got a crossfire after that and all was fine, have just got an adjustable dynaflow this week.

luke

[Head knight of Ni]

don't over tighten the field strip screw. it's designed to be hand tightened, and allen wrench loosened. i used to over tighten my field strip screw all the time and would wonder why my gun wouldnt operate properly. everytime i finally figured it out I felt like an idiot cuz i had done it so many times already.

Listen to this man. I felt like an idiot when I noticed the wear on the bottom of my powertube. Since then my chuffing problems have been resolved, my gun still hates Tampa though.

[matteusz]

I had the same problem with a mag yesterday. It was a classic valve level 10 with a micromag body. I changed tanks and the problem went away. I would go with what luke says.

[CaliMagFan]

to amend what i said before...

-tighten the front screw (trigger frame location) to a normal level... nothing too tight- use the wrench tho...
-then tighten the FS screw with you hand.
-shoot the gun until the bolt doesnt lock back (you'll have trigger pressure, but the gun wont fire)
- dont push the bolt back with you finger/squeegie or anything at this point.
- simply tighten the FS screw with the allen wrench at this point.. once you hear the bolt click and lock back, you've gone far enough.. should be like a 1/4 turn. tighter than hand tight.

good luck