How to Measure Engine Cylinder Pressure?

[HavenAnn]

Engine cylinder pressure measurement method is: 1. Remove all spark plugs and reset the gauge to zero; 2. Start the engine, observe and record the first jump value indicated by the needle; 3. If uneven high and low readings occur during measurement, the lower value indicates the piston was not started at full intake and compression timing. Engine cylinder pressure requires proper cooling of the cylinder and cylinder head to ensure the inner surface operates normally under high temperatures. There are two cooling methods: water cooling and air cooling. Water-cooled engines have cooling water jackets around the cylinders and in the cylinder head, with interconnected cooling water passages between the cylinder block and cylinder head. The circulating coolant continuously removes heat to cool the cylinder and cylinder head.