How to disassemble the intake branch pipe of 12 Liu Ma?

12 Liu Ma intake branch pipe is relatively easy to disassemble. First remove the throttle valve and pipeline, then remove the intake pipe bracket, then remove the fuel injector and fuel rail, then remove the fixing screw, and then pull it out directly. Before we talk about the intake manifold, let's think about how air gets into the engine. In the introduction of the engine, we mentioned that the piston runs in the cylinder. When the engine is in the intake stroke, the piston moves downward, forming a vacuum in the cylinder.

Intake manifold action

It has a pressure difference with the outside air, which makes the air enter the cylinder. For example, everyone should have injected it and seen how the nurse inhaled the medicine into the needle! Imagine that the syringe is the engine, so when the piston in the syringe is pulled out, the medicine will be sucked into the syringe, and the engine sucks air into the cylinder in this way.

Due to the low temperature at the intake end, composite material has become a popular intake manifold material, and its interior is light and smooth, which can effectively reduce the resistance and increase the intake efficiency.