Troubleshooting And Repair Suggestions for Engine Oil Leakage

The engine is the "heart" of the car, and engine oil leakage is like "bleeding" from the heart. Once an oil leakage problem occurs, it will not only affect the performance of the vehicle and increase fuel consumption, but may also cause fires, corrode parts, and even cause engine damage. More importantly, many car owners either ignore or blindly repair the oil leakage after discovering it in the early stage, and the problem gets worse and worse. So, how should engine oil leakage be checked? How can it be repaired scientifically? This article will give you a comprehensive analysis.

1. Common causes of engine oil leakage

Aging or damage of gaskets

Gaskets such as valve cover gaskets and oil pan gaskets in the engine are prone to aging and hardening after long-term use, losing their sealing properties and causing oil leakage.

Oil seal failure

Once the front and rear crankshaft oil seals, camshaft oil seals, etc. are worn or deformed, they will also cause oil leakage.

Loose or improperly tightened screws

The engine vibrates frequently during operation. If the screws are not tightened according to the specified torque, they are easy to loosen, causing oil leakage at the joint.

Cracks in the engine body or processing defects

After some engines experience violent collisions or work at high temperatures for a long time, micro cracks appear in the engine body, and the oil will slowly seep out from the cracks.

Improper refueling operation

Adding too much oil, not covering the refueling port tightly, and not cleaning the funnel may also cause temporary "false oil leakage".

2. How to quickly determine the location of the oil leak?

To determine the oil leak, you don't have to disassemble the engine at the beginning. You can quickly check it in the following ways:

• Observe the ground: If there are always oil stains at the parking place, you can roughly determine which part of the lower part is leaking.

• Check the direction of the oil stain: Use a flashlight to illuminate and trace the oil stain upward. The top is often the source of the oil leak.

• Use detergent + talcum powder: After cleaning the engine casing, spray talcum powder on the leak-prone area, run a lap, and then observe whether there is oil stains on the powder surface, which can accurately determine the leak point.

Pay attention to odor and smoke: Leaking oil dripping on the exhaust pipe or hot parts will produce a pungent smell or even white smoke, which is a very dangerous signal.

3. Dealing with different types of oil leakage

4. Daily suggestions for preventing engine oil leakage

• Regular maintenance: Replace seals, oil and filters on time to avoid abnormal oil pressure.

• Use high-quality oil and sealing materials: Low-quality oil can easily cause carbon deposits, abnormal pressure, and cause seal failure.

• Avoid frequent sudden acceleration and long-term high-load driving: It can effectively extend the life of internal engine components.

• Check the oil level and appearance once a month: This is the best way to detect early oil leakage.

5. Oil leakage cannot be delayed-the sooner the repair, the more money it saves

Many car owners turn a blind eye to minor oil leaks, but it is these "minor problems" that are often the prelude to "engine overhaul". Once the oil leak causes insufficient lubrication, high temperature overheating or excessive carbon deposits in the engine, the cost of later repairs may be to replace the entire cylinder head or cylinder block, which costs up to thousands or even tens of thousands of yuan.

Conclusion:

Engine oil leakage is not terrible, but neglect and wrong repair are terrible. Mastering scientific troubleshooting methods and combining them with professional repair suggestions can not only save a lot of repair costs, but also ensure the safe and efficient operation of your car. Next time you encounter an oil leak, you might as well follow the methods in this article, analyze it calmly, and then decide whether to solve it by DIY or hand it over to a professional technician.

If you find this article helpful, you might as well save it and forward it to your car owner friends!