Crosman 2300T Leak

[Roboslug]

I was gifted a 2300T this last Christmas and have ran about 16 cartridges through it averaging 90 shots per cartridge. Today, I put in a new cartridge and the pistol began leaking as soon as it was pierced. That seems like pretty low mileage for a poppet valve.

Any ideas for a better replacement?

 

[nervoustrig]

Usually the face seal is the first to go. Is CO2 leaking out the barrel?

 

[Roboslug]

Yes sir.

 

[nervoustrig]

Got it, in that case I suggest go ahead and take it apart and inspect the poppet and valve seat. Either to confirm the poppet is bad or find a piece of debris holding it open. Hopefully it’s simply the latter since the poppet should last a very long time.

 

[Roboslug]

That's the plan right now. I wish that Mac1 offered a valve (other than factory) for this platform. I have a SW78G that got over 20,000 shots on a single Mac1 valve.

 

[DARKHORSE1967]

You could reverse that yellow-orange valve seat.

Also hand-tighten the C02 cap a bit more.

 

[Simplemann]

Is it leaking with Pellgun oil applied to the CO2? If you haven't tried applying a few drops of Pellgun oil to see what happens I would give that a try, its quick and easy. If it still leaking then I would move onto what others have suggested.

 

[Roboslug]

I do use pellgun oil and of course I had to try a second cartridge with a couple additional drops to no avail.

 

[marflow 777]

you know the oil is for the valve not so much for the face seal
i would cock the gun and take the hammer off the valve stem
flip the seal and retest or take it apart

 

[Roboslug]

If only there was an easy way to get to the face seal without disassembly.

 

[DARKHORSE1967]

The 22xx is very easy to work on.

I could probably do it with my eyes shut.

 

[Roboslug]

Disassembly/reassembly is pretty easy. The frame screws were reasonably tight as were the barrel band screws. All of the others were very loose, except of course the .050" allen breech screw. That required drilling & an ez-out. It has been replaced with a stainless torx head. Even the barrel screw was loose.

I had ordered a poppet valve and face seals, but neither one was required. The valve disassembly fought me until the last quarter turn when it revealed red thread locker and brass burrs. Remember, this was purchased new from Crosman at Christmas.

Once the schmutz was removed from the threads the valve went back together with ease. The poppet was just oily with no burrs or damage. I hate that I had to tear into it, but it is better for it with a clean valve and tight screws.

 

[Simplemann]

Thanks for the update I'm no expert but if I was putting a valve assembly together I would use blue loctite not red. If Crosman used red I'm guessing thats the norm??

 

[nervoustrig]

While I'm very much a fan of threadlocker for things at risk of backing out or self-adjusting, I see no need for it on the threads holding the two halves of a 2300 / 2240 / 2400 valve together.

If you do use it, be very careful that it does not come into contact with any synthetic materials like the O-ring or poppet. It aggressively attacks many plastics and elastomers. "It" being methyl methacrylate.

 

[Roboslug]

I agree, what is crazy is that it came from Crosman that way.

 

[Roboslug]

After several more Co2 cartridges all continues to be well.

It has always had "2 clicks" when cocking. The second click fully cocks the hammer, while the hammer barely moves for the first. When fired from the first click/stop the hammer falls, but does not have enough force to open the valve.

All of the parts are stock - trigger, sear, hammer, valve assy.

This seemingly "dry fire" mode works very well. Is this by design?

 

[nervoustrig]

This seemingly "dry fire" mode works very well. Is this by design?

I think it's just a natural byproduct of the simple direct-sear trigger. As the bolt is drawn back a short distance, the sear latches up ahead of the rear shoulder of the hammer, holding it at very light spring preload. This behavior is of limited benefit to practice dry firing because although the pull distance is represented, the pull weight is not.

 

[Roboslug]

NT, that makes sense, but I don't know what the sear is actually latching on to.