Automag Maintenance Question.

[athomas]

Fire the gun and hold the trigger in. If there is no leak, then the powertube area is the problem. Replace the powertube oring. It could also mean that your powertube spacer is too long. Use a shorter one to allow the oring to have more pressure on the back of the bolt stem. If you can afford it, install a level 10 bolt.

[steve_81]

I hold the trigger down, no leak and then it will start leaking down the barrel after 10 or so seconds. Just like in the Tom Kaye video. Meaning that the Powertube O-ring is the culprit. So i'm assuming it's the powertube o ring as it is not doing that "sprinkler leak" indicating the on/off o rings when I hold the trigger down. The parts kit should be here tomorrow. I will switch out some o rings and report back. Thanks for the help guys.

[Ando]

I hold the trigger down, no leak and then it will start leaking down the barrel after 10 or so seconds.

It's leaking while the trigger is still held for 10sec?

[steve_81]

It's leaking while the trigger is still held for 10sec?

Yea, It has a really small leak I can hear when I air the gun up and sometimes in between shots. Also, if I hold the trigger down for 10 or so seconds the marker starts leaking down the barrel and it goes away when I release the trigger.

I got my parts kit in and replaced the powertube o ring and now it works fine. no leaks.

[athomas]

If it starts leaking after you hold the trigger in, it usually indicates an on-off oring issue.

When you release the trigger and it leaks, it usually indicates a powertube issue.

However, there is always some residual air left in the chamber after a shot. If the powertube oring was suspect, or barely sealing due to a spacer that was too long, it could start audibly leaking if the sealing surface failed due to constantly applied pressure.

I'd check the sear to see if it has any signs of wear as well.