ERIKC 0445120122 For Cumins Qsb Engine Injector 0 445 120 122 For BOS Genuine New Injection 0445 120 122 for DongFeng

ERIKC 0445120122 For Cumins Qsb Engine Injector 0 445 120 122 For BOS Genuine New Injection 0445 120 122 for DongFeng

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Our company's main products :For BOS denso For Delp  piezo common rail injector ,  valve , nozzle , pump , repair kit , Fuel metering valve , Solenoid valve ,injector nozzle tester , injector repair tool and shim copper oring other injector parts

Injector FAQ

FAQ: What are the common problems with fuel injectors? Needle body wear

The needle valve body face is subjected to frequent reciprocating motions of the needle valve, and a pit is gradually formed over time, thereby increasing the needle valve lift and affecting the normal operation of the injector.

Solution: The needle body can be grinded on a grinding bed to grind this end face and then ground with a fine abrasive paste on a glass plate.

FAQ: What are the common problems with fuel injectors? Injector and cylinder head coupling hole leakage oil

ERIKC Answer: When the injector is equipped with the cylinder head, the carbon deposit in the mounting hole should be carefully removed. The copper gasket must be flat and must not be replaced with an asbestos plate or other materials to prevent poor heat dissipation or sealing effect. If self-made copper washers are used, the copper must be machined to a specified thickness to ensure that the distance from the injector to the plane of the cylinder head meets the technical requirements. For example, the distance of the 135 series diesel engine is 1.5 to 2 mm, too large and small will affect the cylinder compression ratio. In addition, the concave shape of the fuel injector pressure plate should be installed downwards. Avoid unilateral bias when tightening. Tighten evenly according to the specified torque. Otherwise, the injector head will deform due to deflection and cause air leakage.

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