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Industry info Wiki Q&A
Q can i add coolant when engine is hot
CorneliaThomson
JulianJuliana Release Time: 3月 22, 2024, 6:35 下午
It’s generally advised not to add coolant to a hot engine due to the risk of sudden temperature changes causing engine parts to crack or the hot coolant erupting out, which can lead to severe burns. When an engine is hot, it’s under pressure, and opening the coolant reservoir or radiator cap could result in hot coolant and steam escaping forcefully. Instead, wait for the engine to cool down to a safe temperature. This process may take at least 30 minutes. Once the engine has cooled, slowly open the radiator cap with a cloth to protect your hand, and then add the coolant. Always use the correct type of coolant for your vehicle, as specified in the owner’s manual. Adding coolant to a cooled down engine helps prevent engine damage and ensures the safety of anyone performing the maintenance.
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Q what is a blowby on a diesel engine
JulianJuliana
BerylNelly Release Time: 3月 22, 2024, 6:00 下午
Blowby in a diesel engine refers to the phenomenon where combustion gases escape past the piston rings into the crankcase, due to incomplete sealing. This can lead to reduced engine efficiency and power output, increased oil contamination, and higher emissions. Typically, blowby is a sign of engine wear or damage, especially in the piston rings or cylinder walls. To maintain optimal performance and longevity of a diesel engine, addressing blowby promptly through proper maintenance, such as regular oil changes and engine check-ups, is crucial. Ignoring blowby can exacerbate engine wear, leading to costly repairs. Monitoring systems are often used in modern engines to alert owners to excessive blowby, enabling timely interventions.
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Q what happens if you add coolant to a hot engine
JulianJuliana
LorraineClare Release Time: 3月 21, 2024, 9:50 下午
Adding coolant to a hot engine can be risky due to the sudden temperature difference, which may cause the engine block or other components to crack due to thermal shock. When an engine overheats, its metal components expand, and introducing cold coolant abruptly can lead to significant damage. It’s safer to allow the engine to cool down somewhat before slowly adding the coolant. Moreover, opening a hot coolant system can result in hot steam or coolant spraying out under pressure, posing a risk of burns. To avoid damage and ensure safety, it’s advisable to wait until the engine cools or is warm, but not hot, and carefully release the pressure from the cooling system before adding coolant. Always refer to the vehicle’s manual for specific guidance.
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