Download the schematic for this marker: Delta .68 Marker Schematic
Download the manual for this marker: Delta .68 Marker Manual
To purchase any parts, please contact: 1.800.220.3222
The Valve Face O-ring (#29) is worn from not properly installing the 12 gram CO2 or improper upkeep of oiling the valve face. The Valve Face o-ring is in direct contact with CO2 which causes the O-Ring to dry out and crack. At this point of it being misshaped it will not hold a seal. Using a dental pick remove and replace the O-Ring in the valve face to fix the problem.
If air escapes from the point where the valve stop pin enters the main body only when the gun is fired, this is normal. Blowback air that is used to recock the hammer will exit the marker from many openings.
This problem is usually caused from removing or resetting the Air Transfer Plate and the Gasket (#11) underneath. Make sure the marker is degassed, and there is no 12 Gram CO2 installed on the marker. Remove the Air Transfer Plate by removing the screws (#5) holding it into the body. Reset the gasket making sure it is not crimped or creased anywhere and covering the opening completely. Carefully replace the Air Transfer Plate and replace the screws. BE SURE NOT TO OVERTIGHTEN.
If air is escaping from the barrel or vertical feed area, this indicates that air is leaking past the cup seal and/or main valve. Make sure you cock your bolt back into the firing position before connecting your air source.
Download the manual for this marker: Delta .68 Marker Manual
To purchase any parts, please contact: 1.800.220.3222
Spot #1: Leaking from the Valve Face (#20)
The Valve Face O-ring (#29) is worn from not properly installing the 12 gram CO2 or improper upkeep of oiling the valve face. The Valve Face o-ring is in direct contact with CO2 which causes the O-Ring to dry out and crack. At this point of it being misshaped it will not hold a seal. Using a dental pick remove and replace the O-Ring in the valve face to fix the problem.
To properly install the 12 gram CO2 Follow these steps.
- Place a few drops of non-corrosive lubricant made specifically for use in paintball (Empire Oil) into the center of the bottom chamber of the Main Body (#23), where the CO2 will be punctured. This must be done for every 12 Gram CO2 put into the marker. This will run the oil through the valve to ensure the puncture O-Rings stay moist and do not dry or crack. Failure to do so will cause the marker to leak.
- Place the 12 Gram CO2 cylinder into the tube with the narrow end in first.
- Lower the clamp down so the lever is at a 45 degree angle when the plunger makes contact with the 12 gram CO2, but doesn’t puncture it (See Diagram Below). If it doesn’t touch, or touches earlier, you may have to remove the 12 gram and screw in or back out the plunger on the front of the Gas Clamp (#19) with your finger.
Spot #2: Leaking from the Valve Body Pin
If air escapes from the point where the valve stop pin enters the main body only when the gun is fired, this is normal. Blowback air that is used to recock the hammer will exit the marker from many openings.
If air is leaking constantly, replace the cup seal and valve o-rings. If this does not solve the problem, then the entire main valve needs to be replaced also.
Spot #3: Leaking from the Air Transfer Plate (#12)
This problem is usually caused from removing or resetting the Air Transfer Plate and the Gasket (#11) underneath. Make sure the marker is degassed, and there is no 12 Gram CO2 installed on the marker. Remove the Air Transfer Plate by removing the screws (#5) holding it into the body. Reset the gasket making sure it is not crimped or creased anywhere and covering the opening completely. Carefully replace the Air Transfer Plate and replace the screws. BE SURE NOT TO OVERTIGHTEN.
Spot #4: Leaking out of the barrel / feed port
If air is escaping from the barrel or vertical feed area, this indicates that air is leaking past the cup seal and/or main valve. Make sure you cock your bolt back into the firing position before connecting your air source.
If you have cocked your bolt back into the firing position before connecting your air source and air continues to leak, replace the cup seal and valve o-rings. If this does not solve the problem, then the entire main valve needs to be replaced also.
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