What is the cylinder pressure value of Haval H6?
2 Answers
Haval H6 cylinder pressure value is 8-10bar. The following are relevant information introductions: The working principle of an automobile cylinder is to guide the piston to perform linear reciprocating motion inside the cylinder. Air in the engine cylinder converts thermal energy into mechanical energy through expansion; gas in the compressor cylinder receives piston compression to increase pressure, thereby providing a power source. The following are the classifications of cylinders: 1. Single-acting cylinder: Only one end has a piston rod, and air is supplied from one side of the piston to accumulate energy and generate air pressure. The air pressure pushes the piston to generate thrust for extension, and it returns by spring or self-weight. 2. Double-acting cylinder: Air is alternately supplied from both sides of the piston, and force is output in one or two directions. 3. Diaphragm cylinder: A diaphragm is used instead of a piston, and force is output in only one direction, with spring reset. It has good sealing performance but a short stroke. 4. Impact cylinder: This is a new type of component. It converts the pressure energy of compressed gas into the kinetic energy of high-speed (10-20 meters/second) piston movement to perform work. The impact cylinder adds a middle cover with a nozzle and a drain port.
I've been driving a Haval H6 for several years and love tinkering with cars, including measuring cylinder pressure. Generally, the normal value for the Haval H6's 1.5T engine is around 12 to 14 bar, equivalent to 170 to 200 psi. This is crucial for engine ignition—if the pressure is too low, the engine will shake, lose power, and struggle to start. You'll need a cylinder pressure gauge to measure it. It's simple: remove the spark plug, attach the gauge, and start the engine to read the value. But be careful when DIYing—don't mess around carelessly, as electric leaks or high voltage could injure you. From my experience, factory-new cars tend to have higher pressure, while older cars might drop below 10 bar. In such cases, you need to identify the cause, such as worn piston rings or valve seal issues. Regular checks can prevent breakdowns, especially before long trips. Remember, the manual's standard values are more accurate—I always refer to them when measuring. Don't skip this step, as neglecting it could affect fuel efficiency and performance. In short, measure it first—if it's below 12, there might be trouble.
