Career Career 707 air leak

[nineballer]

I recently got a Career 707 mk2, but I am having problems filling it. As soon as I remove the fill adapter, it dumps all the air through the fill port. Does it need a new fill valve or is this an o-ring issue?
Thanks for the help

 

[rdpjr6504]

It could have a stuck check valve in fill adapter. Try some silicone oil in fill port whe filling may loosen check valve. If not you would need to make sure all air is out and remove fill port and replace small delrin check valve, Not hard to do and if you need someone to get parts or service from I can recommend someone who I have purchased many parts and o rings from for all my Korean rifles.

 

[nineballer]

It could have a stuck check valve in fill adapter. Try some silicone oil in fill port whe filling may loosen check valve. If not you would need to make sure all air is out and remove fill port and replace small delrin check valve, Not hard to do and if you need someone to get parts or service from I can recommend someone who I have purchased many parts and o rings from for all my Korean rifles.

Thanks, I'll try that.
Is this the check valve you are talking about?

 

[Ratzy]

Try just pointing it down.
Worked most of the time.
Then I put a spring in mine to push it closed even when upright. Been working for 9 months.

 

[Arzrover]

They were also infamous for doing that with slow bleed valves. The pointing down suggestion is a good one. You need to SUDDENLY open the bleed valve after filling to get it to slam shut. Some bleed valves can't do this so pointing it down and/or tapping the end with a hard plastic hammer or equivalent should get it to close...
Bob

 

[rdpjr6504]

The check valve is in the rifle tube under the fill probe part. Try a couple drops silicon oil in the hole in tube then refill. Might try holding gun barrel down but mine did not need to do that. On several of mine the check valve had deteriorated from age to the point I had to replace them. Good luck

 

[rdpjr6504]

After vooming in on your image looks like a lot of crud in the end of the port for the check valve. May want to try to clean that out.