Minimag trouble

[pbrules15]

It is common if you don't pull the trigger after degassing, or you set your trigger rod too short, or...you are missing your rail bushing.

Check your rail for the rail bushing. It is what the field strip screw goes through from the gripframe, through the rail, into the valve. Without it, your mag will leak, have bolt stick and the sear won't be able to push up the on/off pin far enough to disassemble the marker.

I do have the brass rail bushing.

[secretweaponevan]

It is difficult to adjust the trigger and get 1/16" because the trigger is very loose in the frame, it has about 3/16" travel forward with the gun gassed up.
I did replace the main spring, it is brand new.
I have a .215 spacer.
I do not have trigger stops.

Good news about the rail bushing.

For the 1/16" gap, that is usually measured with the safety on. Since you don't have a safety in the video, you can lengthen the rod as long as there is still at least 1/16" gap of free travel forward with the marker gassed up.

Still, I'd oil that puppy, get a .220 spacer and check your spring pack for rust/debris.

[pbrules15]

Good news about the rail bushing.

For the 1/16" gap, that is usually measured with the safety on. Since you don't have a safety in the video, you can lengthen the rod as long as there is still at least 1/16" gap of free travel forward with the marker gassed up.

Still, I'd oil that puppy, get a .220 spacer and check your spring pack for rust/debris.

I'll try the different spacer tomorrow, I've got some stuff to work on.

Would a new bolt help? Aluminum?

Thanks for all your help!

[secretweaponevan]

I'll try the different spacer tomorrow, I've got some stuff to work on.

Would a new bolt help? Aluminum?

Thanks for all your help!

Nope. Use only AGD products. Nothing else will net you a gain in performance.

[pbrules15]

Nope. Use only AGD products. Nothing else will net you a gain in performance.

Would you suggest a lvl 10 bolt?
Also, what about just a plain stock frame? Instead of this dye one...

[secretweaponevan]

Would you suggest a lvl 10 bolt?
Also, what about just a plain stock frame? Instead of this dye one...

Yes, I love the level 10 bolts.

I don't think the frame is causing your problem. If you like this frame, keep it.

[pbrules15]

Well, I still have the problem, and I'm not ready to upgrade to a level 10 yet.

I was looking at the exploded assembly of the minimag valve. LINK. I noticed the On/Off Top I have looks very different than what is in the picture.

THIS is what is in my Minimag right now, but it looks different than THIS

Would this make a difference? Should I order that different part?

Thanks

[Coralis]

That is the old style on/off top i dont think that would be causing your problem because its happening at low rates of fire , unless it was installed upside down you should see the groves when you insert it into the valve . I have a couple of questions for you when you have the valve out of the body do does the bolt slide up and down fairly easy. Does the bolt slide in and out of the barrel fairly easy, have you tried shooting with out the barrel to see if it still has problems.

[secretweaponevan]

Would this make a difference? Should I order that different part?

Thanks

Hold off on that just yet. Let's test your on/off.

Test 1:
Gas up.
Pull and hold trigger back.
Do you hear leaking down the barrel?

If not, your on/off shuts off fine. Proceed to Test 2.

Test 2:
Degass
Disassemble
Take bolt and bolt spring out
Reassemble
Hold trigger
Gas up
Release trigger for a second then pull and hold it back again.
Did gas RUSH out the barrel when you let go of the trigger?

If so, your on/off opens up fine. This will make sure that the on/off top that you have isn't restricting the gas flow.

[pbrules15]

That is the old style on/off top i dont think that would be causing your problem because its happening at low rates of fire , unless it was installed upside down you should see the groves when you insert it into the valve . I have a couple of questions for you when you have the valve out of the body do does the bolt slide up and down fairly easy. Does the bolt slide in and out of the barrel fairly easy, have you tried shooting with out the barrel to see if it still has problems.

I should have stated that. I have tested it with and without the barrel, and it does it either way. And the bolt seems to slide easy on the power tube.
Yesterday, I was playing with it, and after a few shots, it started to make a leaking sound inside the gun, and it would not stop. I let it sit for several minutes, gassed it up again, and it didn't happen again. Could my on/off pin be bad? The chrome plating is not as shiny as it used to be, but it is still very smooth.

[Coralis]

any luck fixing this ? if you have a parts kit laying around you might try changing the on/off orings. one question since the last time the gun was functioning did you do anything to it like changing orings etc ?

[athomas]

When was the last time the bolt spring was changed? They are a consumable item and need to be changed every so often.