bounsing(?) hamer????
Hello,
I’ve got a question;
Someone send his condor to me , with the following problem.
He s got :
a 22 inch 5,5mm barrel
and a leupy’s hammer (hybrid) 65 grams
and a leupy’s stronger spring.
And a blodnob valve.
When all these parts are in the gun and when you try!! too shoot .
The breech slams backwards(when the hammer hits the breech , it first opens the valve and at that time the breech AND hamer slam back a cm orso) after the shot is fired so al lot of air escapes between tophat and breech.
AND the frame of the condor wears out around the breechnob 😕
Is there any one who has an idee what the problem could be?
greets from robert from the netherlands
All Replies
Yaeh, maybe you have a 9mm gun.
Have you tried a heavier valve spring?
It sounds like the BN valve spring and hammer spring are not balanced.
Hi I am back 😈
The condor is still NOT working like he should!!!
In the standaard setting the gun shoots normal and O.K.
new breech new hammer and original spring , no problems and shoots fine .
Then I install the BN valve and BANG ……….. the complete breech slams backwards against the hammer and the Knob of the breech slams out the breech (the knob slams in to the slot of the frame 😥 and breaks out the breech )
threads completly gone.
and i can make another new breech”again” the thirt one!!!
Now I’m gonna make a valve of my owne and put it into the gun and see what happens .
Keep you posted !!!
If all the bits are not working hand in hand, is it posible the air comming out the top hat is forcing the breach back due to a hammer waight and spring tension isue? It just a thought, Im probs compleatly wrong an somone will point out my stupidity lol
Thanks Maw,
Unfortunately its doesn’t get out much due to me being out of the country all the time :3 working my ass-off!
That’s a classy little pumper.
hey,
My current setup is as follows: 12″ barrel, 90g hammer, stock spring with no preload and the tophat inner retainer is “I think” 3.5mm. I use a 3200psi fill. forgot to add…check for o-ring damage inside the valve, 1 or 2 o-rings depending on valve revision.
I’m setup to get 870fps with Kodiak’s 21grn. I could probably get a couple more fps, but I’m happy with it as is…
For raw power I would go with the new stock high flow valve with a one-piece stem/tophat.
brgds
jack
Hai,
After the weekend I’m gonna take the valve apart en take a pic .
the tophat isnt secured like the original tophat (with 2 little allen screws) , it has a little space to move on the thread like 3/10 of a mm and I think thats the problem of his rare shot consistence.
But the valve must !!give much more power than it gives at this time .
How much hammer weight do you recommend??
90 or 100 or…..?
In my stealth (200 + fpe 9mm) i,ve got a 6,5 mm hole trough my valve and a hammer of 90 grams.
I’ll post some pics from my home made valve for the 9mm .
The small one has a 3,5 mm hole trough the valve stem
greets Robert
http://www.mijnalbum.nl/Foto-SRD38V3V-D.jpg
http://www.mijnalbum.nl/Foto-8BS6USUP-D.jpg
More detailed pics after this weekend.
Sounds like you’re getting a air-lock or a too light of a hammer; check out the pic, if you don’t have the 1mm hole in the stem, that just might be the case. 
brgds
Jack
HEllo,
IN the original setup the gun works fine !
and withe the hybrid hammer in the gun and the powerspring , it still works fine .
But when I put in the blodnob valve, de hammer bounses back with an awesome speed.
It seems that the air escapes past the stem , there’s no o-ring inside.
And pushes the tophat back in his start position
At this time i think its better to use the original valve of the condor , and just open the holes in the stem a bit more 😉
And see what kind of fpe it brings .
This weekend I finished of an other condor at 132 fpe 😈 in .25
357 mtr/sec with the sam yang bullets
I m trying to bring this condor to the same vellocities.
greets Robert
greets Robert
Has the spring run out of travel by the time the hammer hits the breech?
Or put another way, when the rifle is NOT cocked, does the spring apply lots of pressure to the breech?
If the spring is too short,theres not enough pressure on the breech to hold it in place as the valve opens.
And, as said before, make sure the oring that goes over the tophat is good and tight.
Cygnus once posted a slowmotion vid of the breech bouncing back when fired. It happens with all Airforce rifles to a certain extent. You just gotta tame yours down a bit!!
The problem occured also with a brandnew breech! Installing the original valvel did solve the problem. But what about the so famous blodnob valve, why is it bouncing back my breech?? Any ideas?
What should the full potential of the blodnob valve be? With a 90 gr. hammer we are now getting 75fp with standard hammerspring and standard airforce valve. What should the output of the blodnob valve be?
I have used a stronger hammerspring also but it did not solve the problem.
Any more suggestions?
Regards
Gradje
You need to make sure the o ring that goes over the tophat is good and tight,otherwise it will bounce back. I also had this problem with a Blod valve. As soon as I installed a new breech with a tight fit on the tophat, problem solved 😉
You need the heavier spring and hammer if you want the full potential from the valve.
Heavy hammer springs tend to have problems down the road.
It is hitting the valve so hard the it bounces back with to much force. Maybe a little lighter valve spring might help to decrease the valve bounce as well.
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Hello,
I will try an other valve spring ! thanks .
Never thought about that 🙄
And Yes I have a 9mm gunpower , but thats a complete other gun!!!!
With a valve , that i made myself . :8
http://www.mijnalbum.nl/Foto-SRD38V3V-D.jpg
http://www.mijnalbum.nl/Foto-8BS6USUP-D.jpg
This topic is about a airforce condor with a normal 24 inch .22 barrel.
Just read my first post in this topic, that’s the gun whe’re talking about 😉