What Causes Oil Leakage Under the Engine?
1 Answers
The causes of engine oil leakage are as follows: 1. Oil pan gasket damage or loose screws causing oil leakage. 2. Oil pan drain plug gasket damage, missing, or looseness leading to oil leakage. 3. Improper installation, damage, or loose screws of the timing gear cover gasket causing oil leakage. 4. Engine mounting plate deformation or poor gasket sealing resulting in oil leakage. 5. Poor sealing of the valve cover gasket causing oil leakage. Here are some precautions regarding the engine: 1. Tighter belts are not necessarily better. Over-tightening the belt not only causes it to stretch or break, shortening its service life, but also leads to excessive tension, resulting in deformation and bending of the generator shaft, water pump shaft, and early bearing damage. The tightness of the car engine fan belt should meet technical requirements; generally, a deflection of 10-15mm during normal belt installation is appropriate. 2. If the thermostat is blindly removed due to high engine temperature, the coolant can only circulate in a large loop, unable to regulate cooling intensity, making it difficult to ensure the engine operates at an optimal temperature. Instead, the engine will frequently operate at low temperatures, leading to reduced power, accelerated wear, and increased fuel consumption. 3. Low engine temperature is also highly detrimental. Driving at the normal temperature specified in the car's manual ensures the engine's service life. 4. When warming up at idle speed, due to the low speed, the oil pump cannot quickly press lubricating oil into all lubrication surfaces, and the oil pressure is also low, causing engine moving parts to operate under dry or semi-dry friction conditions. Poor fuel atomization at low temperatures allows unburned fuel to enter the crankcase, washing away the oil film on the cylinder walls, which also accelerates component wear.
