What are the symptoms of a blown engine cylinder head gasket?
1 Answers
Failure manifestations after the cylinder head gasket is blown: Due to different locations of the gasket damage, the symptoms of failure vary. If the engine cylinder communicates with the cooling water jacket or the lubricating oil passage, yellow-black oil foam will float on the upper surface of the coolant in the radiator, or there will be obvious water in the oil pan. When these two types of gas channeling are severe, the exhaust will contain water or engine oil. In addition to the above phenomena, there are also the following symptoms: 1. Bubbles appear: High-pressure gas from the gas-oil passage enters the lubricating oil passage connected between the engine block and the cylinder head. The oil temperature in the oil pan remains high during engine operation, the oil viscosity becomes thin, the pressure decreases, and the oil deteriorates quickly. The oil sent to the valve train in the upper part of the cylinder head clearly contains bubbles. 2. Insufficient power: Gas channeling between two adjacent cylinders. Without opening the decompression, when turning the crankshaft, it feels like the pressure in both cylinders is insufficient. When starting the engine, there is a phenomenon of black smoke, the engine speed drops significantly, and the power output is insufficient.
