Mag still leaks when I pull Trigger...

[Danny77]

I got a new spacer kit, and put in the smallest one. No difference, still leaks down the barrel when I pull the trigger halfway in.

Whats the deal!?

[nak81783]

Have you tried a new power tube o-ring that seals on the bolt stem? Oil a new one up and try that.

List everything you've tried, then we can go from there.

Thanks,
Nathan

[PyRo]

While pulling or when its held down?
My minimag would leak while pulling the trigger back. Smallest spacer did nothing, never could figure out what was wrong with the thing, but when I gassed it up after a year of sitting it had healed itself. Go figure.

[Danny77]

Ive replaced pretty much every O ring and seal in the gun.

It leaks when I pull it back, not when its pulled back all the way.

[nak81783]

How bad is the leak?

Is it a very small leak or does it blow air out pretty good? I know both kinds are annoying, but I just need to get some more details.

Thanks,
Nathan

[PyRo]

But you replaced the o-ring in the PT correct? You could possibly have a bad bolt. A worn sear might do this too. Your PT isn't cracked right?

[Danny77]

its a pretty serious leak.

yeah I replaced the O ring, and my PT isnt cracked, it appears to be ok, same with my bolt. What could be wrong with the sear?

[nak81783]

Pyro will probably correct me if I'm wrong, but a worn sear may allow the bolt to be just far enough forward to have the stem of the bolt not seal on the the PT o-ring. At the same time, the trigger isn't back far enough yet to seal the on/off, so it's an open airway from your tank out the barrel.

Nathan

[PyRo]

nak81783
Thats pretty much the same thing as I was thinking but i'm not sure wether or not it would cause this type of leak.

I know I had a chipped sear once which completley ate one bolt and half of another before I figured it out. Ok that was pretty random

Let me find a pic of a sear and ill show you what to check for wear.

[PyRo]

Check this edge for wear. Again i'm not 100% sure if a worn sear will cause this, but I think it could. Just check the thing, if its worn we will get someone else to confirm it.
Check here.
Edge should be sharp like in pic, not rounded off.

[athomas]

If the sear has excessive wear at the tip it can experience leaking as described. Its just like nak81783 said. The bolt sits too far forward, not allowing the bolt stem to properly seal against the powertube o-ring.

[Danny77]

its not the sear, its not worn at all.

[PyRo]

What about that o-ring all the way up on the PT tip? What did you have in there before you got the spacer kit? Bolt edge isn't worn is it?

[Danny77]

What do u mean by worn? It looks fine, but i could be mistaken

My old spacer was a blue one, no numbers on it, looks like its about one size bigger than the one I replaced it with. Is it the stock spacer?

Also, the O ring on the tip I did not replace, its a different size than any other O ring in the parts kit. It says I have "4- PT O rings" in the kit. Is that supposed to be one of them? IE, the same size as the other O ring in the PT? If not, then why isnt it in the parts kit?

[PyRo]

Ok, the spacer kit is made to correct leaks. If your gun isn't leaking then there is no need to mess around with spacers. They will not improve your trigger pull. As for this one being smaller it must be some aftermarket one. If the o-ring on the tip doesn't look damaged it is probably ok. I believe it is just a PT o-ring on there. THe edge of the bolt that latches the sear shouldn't be chewed up or rounded off.