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Injector repair parameters involve several critical technical specifications that are essential for ensuring the performance and accuracy of fuel injection. Here are some common injector repair parameters:
- Solenoid valve nut tightening torque
- Control valve nut tightening torque
- Injector nozzle nut tightening torque
- Armature stroke
- Buffer stroke
- Nozzle needle stroke
- Solenoid valve spring preload
Precise control of these parameters is key to ensuring proper injector operation and optimal engine performance. When repairing injectors, specialized tools should be used, and operations should strictly adhere to these parameters to maintain injector performance and longevity.
Below are the repair parameters for Bosch, Denso, Cummins, and Caterpillar injectors for your reference.
We provide high-quality repair parts and tools. Please visit our products for more details. You can also contact us by WhatsApp: +86 13027621819 or Email: info@dieselstart.com for support!
>Solenoid Valve Nut Tightening Torque: 30 ± 5 Nm
>Control Valve Nut Tightening Torque: 65 ± 5 Nm
>Injector Nozzle Nut Tightening Torque: 65 ± 5 Nm
>Armature Stroke: 50 ± 3 microns
>Buffer Stroke: 35 ± 5 microns
>Remaining Air Gap Stroke: 45 ± 5 microns
>Nozzle Needle Stroke: 200-300 microns (depending on the model)
>Solenoid Valve Nut Tightening Torque: 30 ± 5 Nm
>Control Valve Nut Tightening Torque: 65 ± 5 Nm
>Injector Nozzle Nut Tightening Torque: 65 ± 5 Nm
>Armature Stroke: 52 ± 3 microns
>Buffer Stroke: 40 ± 5 microns
>Remaining Air Gap Stroke: 45 ± 2 microns (no adjustment needed, for inspection only)
>Nozzle Needle Stroke: 200-320 microns (depending on the model)
>Solenoid Valve Nut Tightening Torque: 30 ± 5 Nm
>Control Valve Nut Tightening Torque: 75 ± 5 Nm
>Injector Nozzle Nut Tightening Torque: 65 ± 5 Nm
>Armature Stroke: 52 ± 2 microns
>Buffer Stroke: 20 ± 5 microns
>Remaining Air Gap Stroke: 45 ± 5 microns (no adjustment needed, for inspection only)
>Nozzle Needle Stroke: 200-300 microns (depending on the model)
>Solenoid Valve Nut Tightening Torque: 30 ± 5 Nm
>Control Valve Nut Tightening Torque: 50 ± 5 Nm
>Injector Nozzle Nut Tightening Torque: 55 ± 5 Nm
>Armature Stroke: 42 ± 3 microns
>Buffer Stroke: 30 ± 5 microns
>Remaining Air Gap Stroke: (National III 45 ± 5 microns) (National IV 30 ± 5 microns)
>Nozzle Needle Stroke: 850-900 microns (depending on the model)
>Solenoid Valve Nut Tightening Torque: 12-16 Nm
>Control Valve Nut Tightening Torque: 70 ± 5 Nm
>Injector Nozzle Nut Tightening Torque: 65 ± 5 Nm
>Armature Stroke: 40 ± 3 microns
>Remaining Air Gap Stroke: 70-75 microns (no adjustment needed, for inspection only)
>Nozzle Needle Stroke: 300 ± 20 microns (depending on the model)
>Solenoid Valve Nut Tightening Torque: 30 ± 5 Nm
>Control Valve Nut Tightening Torque: 70 ± 5 Nm
>Injector Nozzle NutTightening Torque:
(M:14: 65 ± 5 Nm)
(M19: 75 ± 5 Nm)
>Armature Stroke: 60 ± 5 microns
>Remaining Air Gap Stroke: 45-50 microns (no adjustment needed, for inspection only)
>Nozzle Needle Stroke: 350 ± 20 microns (no adjustment needed, for inspection only)
>Solenoid Valve Nut Tightening Torque: 30 ± 5 Nm
>Control Valve Nut Tightening Torque:
(Made in China Valve 45 ± 5 Nm)
(Original Valve 65 ± 5 Nm)
>Injector Nozzle Nut Tightening Torque: 55 ± 5 Nm
>Armature Stroke: 50 ± 2 microns
>Remaining Air Gap Stroke: 35-40 microns
>Nozzle Needle Stroke: 300 ± 10 microns
