What is the oil pan of a car engine
Motor engine oil pan is a detachable component at the bottom of the engine that serves as a sealed housing in the crankcase and acts as a reservoir of oil. The oil pan is usually made of thin steel plate by stamping process. For complex-shaped oil pans, cast iron or aluminum is used.
The functions and roles of the oil pan
Youdaoplaceholder0 Closed crankcase : Prevents impurities from entering and protects the engine's internal parts .
Youdaoplaceholder0 Collect and store lubricating oil : Collect the lubricating oil flowing back from the friction surfaces of the engine to ensure that all engine components are well lubricated .
Youdaoplaceholder0 Heat dissipation : Helps dissipate some heat and prevents the lubricating oil from oxidizing .
Youdaoplaceholder0 Reduce oil surface oscillation : Equipped with an oil stabilizing baffle inside, it reduces the oscillation and splashing of the oil surface when the diesel engine jolts, which helps the sedimentation of impurities in the lubricating oil .
Youdaoplaceholder0 Check the oil level : A dipstick is installed on the side for checking the oil level; It has oil drain plug at the bottom for easy oil change and discharge .
The type of the oil pan
Youdaoplaceholder0 Wet sump : A common type of sump for automobiles that works by splash lubrication. Each time the crankshaft rotates one full circle, the crankshaft and connecting rod will be immersed in the lubricating oil in the oil pan once, playing a lubricating role. Wet oil pan structure SIMPLE, BUT pay attention to the oil level height, too high or too low will affect engine performance .
Youdaoplaceholder0 Dry pan : mainly used in racing engines and works by pressure lubrication. It does not store engine oil in the oil pan but lubricates by setting measurement holes on the friction surfaces of the crankcase to press out the engine oil. The dry oil pan lowers the engine height and improves handling, but the lubrication pressure is entirely dependent on the oil pump .
Youdaoplaceholder0 The main functions of the engine oil pan include storing the engine oil, sealing the crankcase, preventing impurities from entering, collecting and storing the engine oil, dissipating some heat and preventing the engine oil from oxidizing . Specifically:
Youdaoplaceholder0 Store lubricating oil : When the engine stops, the oil flows back to the oil pan by gravity. The oil stored there is delivered to all lubrication points by the oil pump after the engine starts, ensuring the normal operation of the engine .
Youdaoplaceholder0 Closed crankcase : The oil pan serves as a closed shell for the crankcase, preventing dust and impurities from the outside from entering the engine and protecting the internal structure of the engine .
Youdaoplaceholder0 Collect and store lubricating oil : The oil pan collects the lubricating oil that flows back from the friction surfaces of the engine to ensure that the engine can store enough oil when it is not running .
Youdaoplaceholder0 Dissipate some heat : The oil pan helps the engine dissipate heat through the oil circulation, prevents the oxidation of the lubricating oil, and ensures the quality and performance of the lubricating oil .
Youdaoplaceholder0 Prevent oxidation of lubricating oil : Through the oil circulation, the oil pan helps maintain an appropriate working temperature and extends the service life of the lubricating oil .
In addition, the oil pan also has the following functions:
Youdaoplaceholder0 Splash lubrication : The wet oil pan is immersed in the lubricating oil through the crankshaft crank and the big end of the connecting rod, which stirs up oil splashes and oil mist to lubricate the crankshaft and bearing shells .
Youdaoplaceholder0 Lower center of gravity : The dry oil pan eliminates the function of storing engine oil, lowers the height and center of gravity of the engine, which is beneficial for handling .
Common faults of the engine oil pan include oil leakage, deformation, clogging, water ingress and abnormal oil consumption . The main causes of these malfunctions are as follows:
Youdaoplaceholder0 Oil leakage : mainly due to aging of rubber seals on the engine (such as crankshaft front and rear oil seals, oil pan sealant, etc.), improper assembly of components, cracks in the cylinder block or cylinder head, excessive oil addition, or improper use and maintenance, etc. Youdaoplaceholder2.
Youdaoplaceholder0 Deformation : The oil pan becomes dented, deformed or even cracked due to impact (such as hitting the curb) .
Youdaoplaceholder0 Clogging : Improper maintenance leads to the accumulation of impurities, affecting the normal function of the oil pan .
Youdaoplaceholder0 Inlet water : Abnormal decrease in cooling water, drop in oil pressure, rise in oil level, white mist in the crankcase and breather, etc. May be due to poor cylinder liner sealing ring, damage to the oil cooler, aging of the water seal and oil seal of the water pump .
Youdaoplaceholder0 Abnormal oil wear and tear : including oil leakage and oil burning. Oil leakage may be due to oil seal, oil pan crack, etc. Oil burning may be due to piston ring and cylinder factors .
Youdaoplaceholder0 Prevention and solutions :
Youdaoplaceholder0 Check the sealant in the oil pan regularly and avoid aggressive driving and undercarriage bumps .
Youdaoplaceholder0 Replace aged oil seals, damaged oil pans, stripped oil drain screws and reapply sealant .
Youdaoplaceholder0 Replace deformed oil pan Repair or replace internal parts as needed .
Youdaoplaceholder0 Check and replace damaged parts , such as seals, oil seals, etc. Youdaoplaceholder2.
Youdaoplaceholder0 Regularly maintain your vehicle , clean the impurities in the oil pan to prevent the oil pressure from dropping and abnormal oil consumption .
If you want to know more, keep reading the other articles on this site!
Please call us if you need such products.
Zhuo Meng Shanghai Auto Co., Ltd. is committed to selling MG&MAXUS auto parts welcome to buy.
