Is this the thread for me?

[DeuceSV]

I have an RT Classic that is leaking down the barrel when I gas it up. The sear does not engage.

http://www.automags.org/forums/showthread.php?s=&threadid=38271

Should I just follow this?
If not, what should I do?

Thanks,
Jason

[athomas]

Hold the trigger when you gas it up. Does it still leak? If it does not leak, then your problem is in the powertube portion of the valve. It it still leaks with the trigger held, then the problem is probably a leaky on-off oring.

[kcombs9]

I didn't read the other thread you posted but a few thoughts that come to mind.

is the bolt sticking forward into the breech? if so take a pencil and push the bolt back and see if the sear engages and holds the bolt back and stops the leak.

If that is the problem you might just need a new bolt spring.

[DeuceSV]

it only leaks when I let go of the trigger after I've gassed it up

[athomas]

Ok, the problem is in the powertube. Replace the powertube oring and check the bolt spring. The bolt spring should extend past the front of the bolt when placed on the bolt. It is a consumable item and needs to be replaced occasionally. You should replace it regularly. If you still get a leak after replacing the powertube oring, install a shorter powertube spacer.

[DeuceSV]

Ok, the problem is in the powertube. Replace the powertube oring and check the bolt spring. The bolt spring should extend past the front of the bolt when placed on the bolt. It is a consumable item and needs to be replaced occasionally. You should replace it regularly. If you still get a leak after replacing the powertube oring, install a shorter powertube spacer.

do i need to lube these o-rings?

[athomas]

Yes, lubrication is good. They only need to be wet, not dripping in oil.