What are the steps for testing engine cylinder pressure?

1 Answers
LeAmy
07/30/25 10:56am
Engine cylinder pressure testing steps are: 1. Run the engine until it reaches normal operating temperature, with coolant temperature between 85-95°C. 2. Remove all spark plugs or fuel injectors, and ground the high-voltage wires. 3. Depress the accelerator pedal to fully open the throttle. 4. Press the conical rubber adapter of the cylinder pressure gauge firmly into the spark plug hole of the cylinder being tested, or screw the threaded adapter into the spark plug hole. 5. Crank the starter for 2-3 seconds, then read the stabilized gauge reading. 6. Main factors affecting engine cylinder pressure include: intake and exhaust valve wear, cylinder wear, piston ring wear, and wear between the crankshaft and connecting rods.
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