How to detect cylinder compression pressure with cylinder pressure gauge

(1) The engine runs to normal temperature, and the coolant temperature is 85-95 degrees.

(2) Remove all spark plugs or fuel injectors and ground the high-voltage line.

(3) When stepping on the accelerator, the accelerator is fully open.

(4) Press the conical rubber joint of the cylinder pressure gauge into the spark plug hole of the cylinder to be tested, or screw the threaded pipe joint on the spark plug hole.

(5) Start the starter 2-3s, read the book after the pointer is confirmed, and then press the one-way valve to return the pointer. Each cylinder shall be measured at least twice.

introduce

Pneumatic actuator that converts the pressure energy of compressed gas into mechanical energy in pneumatic transmission. There are two types of cylinders: reciprocating linear motion and reciprocating swing. Cylinders that do reciprocating linear motion can be divided into four types: single-acting cylinder, double-acting cylinder, diaphragm cylinder and impact cylinder.

A cylinder that swings back and forth is called a swinging cylinder. The inner cavity is divided into two parts by blades, and air is alternately supplied to the two cavities. The output shaft swings, and the swing angle is less than 280. In addition, there are rotating cylinders, gas-liquid damping cylinders and stepping cylinders.