1. B21/B23/B24/B27 Common Rail Injector Adjust Shim Set Packing List and Package Size

• Common Rail Injector Adjust Shim Set Box Size

2. B21/B23/B24/B27 Common Rail Injector Adjust Shim Set Technical Support

2.1. B21/B23/B24/B27 Common Rail Injector Adjust Shim Set Installation

• B21/B23/B24/B27 Common Rail Injector Adjust Shim Set Installation Precautions:
• The replacement of the common rail injector adjust shim set must strictly follow the electrical system, the approved pressure of the low-pressure fuel intake system, the approved pressure of the high-pressure fuel circuit system, and fuel system replacement consumables requirements (including the low-pressure fuel circuit system filter and the high-pressure fuel circuit) specified in the vehicle engine maintenance manual.
• Replacement of wearing parts of the fuel system, cleaning requirements for the connection between the fuel system and the common rail injector adjust shim set, the fitting clearance of the common rail injector adjust shim set connection, the installation angle and tightening torque of the common rail injector adjust shim set, the fitting clearance of the intake system, and the fitting clearance of the exhaust system to ensure the service life of the engine and the normal operation of the common rail injector adjust shim set.
• When installing the common rail injector adjust shim set on the engine, it is necessary to clean the engine block, cylinder head and other parts connected to the common rail injector adjust shim set, and ensure that there is no dust, carbon deposits, water, rust spots, etc.
• Before installation, check whether the injector adjusting shim and the nozzle sealing shim have been replaced and installed on the common rail injector adjust shim set .
• When installing the  common rail injector adjust shim set, apply lubricant between the  common rail injector adjust shim set, nozzle sealing shim, and O-ring.
• Failure to replace the sealing ring shim with a new one may result in: deformation of the common rail injector adjust shim set, the oil nozzle cap, the oil nozzle, and the oil nozzle spray hole; oil and air leakage may cause serious damage to the common rail injector adjust shim set, resulting in the breakage of the oil nozzle and damage to the engine.
• When installing the common rail injector adjust shim seton the engine, please carefully check the components related to the installation of the common rail injector adjust shim set, such as the common rail injector adjust shim setpressure plate, screw, common rail injector adjust shim set rod and other accessories are not deformed, and install it in strict accordance with the operation steps of the engine maintenance manual.
• It is forbidden to operate the bare common rail injector adjust shim setfor a long time in an environment with serious dust pollution and corrosion to iron products.
• It is forbidden to operate the bare common rail injector adjust shim set for a long time in a strong magnetic field environment.

3. Copyright Statement

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