What are the symptoms of engine cylinder head collision?
2 Answers
Engine cylinder head collision can cause symptoms such as reduced cylinder compression pressure and loss of power. The following are the reasons for engine cylinder head collision: 1. Broken spring: The intake and exhaust valve springs break, causing the valve to fall into the cylinder; possibly due to hard objects falling into the combustion chamber. 2. Excessive gasket thickness: The connecting rod bearing replaced during overhaul is too thick, or the gasket is too thick; or the piston geometric dimensions do not meet the requirements. 3. Cylinder gasket failure: Frequent cylinder gasket failures cause damage to the cylinder block plane. Excessive repair leads to the piston top exceeding the cylinder block plane when the piston moves to the top dead center, resulting in cylinder head collision. 4. Poor fuel quality: The cause of engine cylinder head collision may be the use of poor-quality fuel by the owner, causing the fuel to condense near the valve stem after the engine is turned off, leading to valve sticking when the engine is cold and causing cylinder head collision during startup.
I've been tinkering with cars for years and have personally experienced the symptoms of an engine misfire. The car feels particularly sluggish, especially when going uphill or accelerating—you can floor the gas pedal, but it just won't pick up speed. There's a knocking sound under the hood, like metal hitting metal, which gets louder at idle or during cold starts. The temperature gauge shoots up rapidly, nearing the red line, and white smoke or steam may puff out after parking. Once, my car started shaking so badly the entire cabin vibrated. Addressing these signs early can save you from major repairs; otherwise, repair costs can double and compromise driving safety. If you notice these warning signals, I recommend getting your car checked by a professional for issues like compression ratio or spark plugs right away.
