What are the solutions for engine knocking?

[DiIan]

When engine knocking occurs mildly, the engine power becomes slightly unstable, the engine shakes severely, and it may cause the engine to overheat and emit black smoke. The solutions for engine knocking are as follows: 1. If there is a knocking sound when the engine starts and runs at low temperature, but the sound disappears when the temperature normalizes, it can be left untreated temporarily, and the engine can continue to run. 2. If there is a noticeable knocking sound when the engine temperature is normal, high-speed operation should be avoided as much as possible, and the engine should be disassembled and repaired as soon as possible. 3. If the cylinder is severely out-of-round, scratched, or the gap between the piston and the cylinder is too large, replacement should be performed. 4. If the connecting rod is found to be deformed, it should be replaced as much as possible.