Why does my air rifles leak air when I break the barrel of my weihrauch 0-97634

Sorry we have locator services here, one reason we have no way to know where you are on this big blue globe.

Crack the weld holding the barrel block to the cylinder split them apart then machine down the the opposite side to the pin end you see as it doesn't go the whole way through and drive out the pin
Then heat up block to release locktite and drive barrel out
Also the barrel is splined into the block so twisting won't work

It is a break barrel and if you secure it to the stock how will you cock it

Sounds like your sear is broken.

The Phantom Break-Barrel does not use CO2. It is a spring-loaded break-barrel weapon. If you really do have a CO2 gun, check the rubber seal around the outside of the cartridge puncture needle.

Hit the top of the barrel with your hand. Don't be afraid to give it a good whack.

Does it leak out?, pump up?, trigger release anything? What are the symptoms? Anything stuck in the bore? I think Crosman will repair your gun at a fixed price, just get a hold of them and get permission to send it back.

The piston doesnt lock on the trigger. if trigger is adjustable set adjustment more coarse. Check also sure that trigger mechanism is in forward position and not stuck halfway. If still not hooking see if piston hooh and trigger catch not damaged. very seldom the piston will twist inside making it impossible to hook, just realign piston.

Check thare is a rubber o ring missing or broken in the air chamber

If the trigger is adjustable set it more coarse to hook the piston rod. Make sure trigger is loose and will reset to it foremost position. Check trigger spring and pin for ease op operation. Lastly check if piston rod did not turn inside cylinder so hook is turned away from trigger.