How long will it take for the engine to seize after the water temperature reaches 100?
2 Answers
After the engine water temperature reaches 100 degrees, driving 1 to 2 kilometers may cause cylinder seizure. The normal operating temperature of a car engine is generally between 80 to 90 degrees, while some high-performance engines can operate at around 100°C. Here are specific details about engine cylinder seizure: 1. Causes: Engine cylinder seizure refers to obvious longitudinal mechanical scratches and abrasions on the inner wall of the cylinder within the movement range of the piston rings, which can lead to adhesive wear in severe cases. 2. Prevention: The engine must be properly run-in, maintain the normal cooling water temperature between 70°C and 95°C, avoid engine overheating, do not overload, do not start the engine without sufficient coolant, and strengthen the maintenance of the air filter to prevent dust from being sucked into the cylinder.
I remember once on the highway, the engine coolant temperature suddenly rose to 100 degrees, and I started worrying about cylinder scoring. Generally, normal coolant temperature is around 90 degrees, and 100 degrees isn't immediately fatal. However, if it stays at this temperature for more than 10 minutes, the risk increases significantly. Cylinder scoring usually occurs due to heat buildup causing piston expansion and friction wear against the cylinder walls; this depends on the engine type and condition—for example, my old car's temperature exceeded 100 degrees when continuously driving on mountain roads, and it started smoking with cylinder scoring after just 15 minutes. If I notice abnormal coolant temperature, my first action is to pull over immediately, check if the coolant is low or leaking, and turn off the AC to reduce engine load. Never ignore the dashboard warning light, or the engine could be ruined within minutes, leading to expensive repairs. Regular maintenance of the cooling system is crucial, such as changing the antifreeze annually.
