Lower or irregular power
The chronograph shows a lower speed than before, or very variable from one shot to another.
- Verifications
- 5
- Until
- Dismantling
- Tools
- 4
Symptoms
- Lower measured speed than at purchase or last measurement
- Large difference between the lowest shot and the strongest shot in a series
- "Dow" shooting noise, less dry
Causes
Most common to rare.
- Dry or worn piston head (definition) jointCommon
- Nozzle (definition), cylinder head (definition) or cocking leakCommon
- Weary spring (definition), often compressed for a long timePossible
- HPA (definition): regulator pressure too low or unstablePossible
Verifications
In the order: we start with what does not require anything to disassemble. Check as you go, the list is kept in this browser.
Same balls, loose hop-up (definition). Note the average and the difference: beyond about 5% between the lowest and the strongest, compression is no longer regular.
Simple toolsTools: ChronographA bad fuck on the nozzle leaves the air running away. Demonstrate the hop-up and check that its back lip is intact.
Simple toolsTools: Precision screwdriverGearbox open: finger on the nozzle exit, push the plunger. It must resist and then move very slowly. If it runs, look for the leak: piston joint (definition), cylinder (definition) head, nozzle joint.
DismantlingTools: Precision screwdriver, Silicone oilA thin layer of silicone fat is enough. A flattened or split joint is replaced.
DismantlingTools: Gearbox fatA recompression can give more than before: the measure to the chronograph says if the replica still respects the limit of the terrain.
Simple toolsTools: Chronograph
Stop
Stop and hand over the reply to a technician if:
- The power exceeds the limit after repair: do not play until you have brought it back into the rules
- The leak comes from the Gearbox cylinder or hull

