Is the oil leakage from the engine valve cover serious?

1 Answers
SanMatteo
07/29/25 10:53pm
Oil leakage from the engine valve cover is serious as it can dirty the engine body, leading to poor engine cooling, reduced insulation of wiring, and in severe cases, may even damage the engine. Causes of oil leakage from the engine valve cover: 1. Uneven tightening of screws during assembly, which can cause deformation of the engine valve cover under excessive pressure, leading to oil leakage; 2. Aging of the valve cover gasket. Solutions: 1. Repair the valve cover; 2. Replace the valve cover gasket and sealing ring. Precautions regarding the engine valve cover: The engine valve cover primarily serves as a seal to prevent oil leakage. It should be inspected every 20,000 kilometers of driving, and if worn, it should be replaced promptly.
Was this review help?
6
1
Share
More Forum Discussions

Will Fuel Consumption Decrease After the First Maintenance?

Fuel consumption will decrease after the first maintenance. After replacing the engine oil during the first maintenance, many impurities and metal debris are removed, improving lubrication, which certainly contributes to reducing fuel consumption. For most vehicles, fuel consumption tends to decrease after the first maintenance, which also marks the end of the break-in period. During the break-in period, various components of the vehicle have not yet reached their optimal working state, naturally resulting in higher energy consumption compared to a fully broken-in vehicle. This is reflected in fuel consumption, as some fuel is wasted on the operation of components that are not yet properly broken in. Fuel consumption is somewhat related to the break-in period, but the relationship with the mechanical break-in itself is not very significant; it has more to do with the driver's habits. Mechanically, during the break-in period, the moving parts do not fit together perfectly, resulting in relatively higher friction, less smooth movement, and greater resistance, all of which contribute to higher fuel consumption. Additionally, drivers are not yet familiar with the new vehicle, which may lead to less standardized operations, such as unfamiliarity with the throttle, often pressing it too hard, or poor throttle control during acceleration. Similarly, unfamiliarity with the brake pedal may result in excessive braking, all of which can increase fuel consumption. While the basic driving techniques are the same, the throttle and brake tuning of different vehicles can vary significantly. Some vehicles have highly responsive throttles, accelerating quickly with a light press, while others may require deeper throttle input for gradual acceleration. Some brakes are very sensitive to light pressure, while others may not respond until pressed harder. Therefore, any driver needs time to adapt to a new vehicle. After the break-in period, when the mechanical components have properly settled and the driver has become familiar with the vehicle, a decrease in fuel consumption is normal.
13
4
Share

What does an exclamation mark inside a circle on a car mean?

Red exclamation mark (specifically a circle with an exclamation mark inside), this represents a warning for the braking system, mainly indicating a braking system malfunction or low brake fluid level. Solution: Immediate inspection and repair of the braking system is required to avoid accidents. Apart from the red exclamation mark indicating a braking system fault, all other exclamation marks on a car are yellow, representing general faults, automatic transmission faults, abnormal tire pressure, and lighting faults. Below is a detailed analysis of these four situations: General Fault: An exclamation mark inside a triangle. If this symbol lights up, it indicates a general performance or component and function fault in the car. Main issues include parking sensor faults, fuel cut-off system intervention or malfunction, external light faults, engine oil pressure sensor faults, etc. It is necessary to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Fault: An exclamation mark inside a yellow gear. This is the automatic transmission fault warning light, indicating a transmission fault or transmission lubricant oil below the normal range. The transmission oil should be replaced promptly. Abnormal Tire Pressure: An exclamation mark with a horizontal line below a bracket. This represents the tire pressure monitoring warning light. When the car's tire pressure is too low, this warning light will illuminate. Check the car's tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark. This is the lighting fault indicator, indicating a fault with the car lights. Solution: Visit a 4S shop as soon as possible for inspection and repair, or you can check by yourself, focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting, to identify the problem.
16
2
Share

Does a Faulty Auto Start-Stop System Affect the Car?

A faulty auto start-stop system does not affect the car. The damage to the auto start-stop function will not affect the normal operation of the engine. However, it will impair the normal use of the auto start-stop feature, so drivers are advised to visit a repair facility as soon as possible for maintenance. The auto start-stop is essentially an additional feature designed to shut off the engine during short stops to save fuel. Common faults in the vehicle's start-stop system may be caused by poor wiring connections, insufficient battery charge, or excessively low battery temperature. These issues can usually be identified easily by inspecting the relevant components. Moreover, repairing the start-stop function does not require lifting the engine or transmission, nor does it cause damage to the vehicle's structural framework. Therefore, strictly speaking, auto start-stop malfunctions are not significant problems. However, it is best to address any vehicle faults promptly by visiting an authorized 4S dealership for resolution. The engine auto start-stop system automatically shuts off the engine during temporary stops while driving (e.g., at traffic lights). When it's time to move forward again, the system automatically restarts the engine. This is achieved by integrating an enhanced motor with idle start-stop functionality into the traditional engine, allowing the engine to completely shut off when idle stop conditions are met. When the vehicle needs to start moving again, the idle start-stop motor system quickly responds to the driver's command, rapidly restarting the engine for seamless transition, significantly reducing fuel consumption and exhaust emissions. The engine auto start-stop system automatically shuts off the engine during temporary stops while driving (e.g., at traffic lights). When it's time to move forward again, the system automatically restarts the engine. This is achieved by integrating an enhanced motor with idle start-stop functionality into the traditional engine, allowing the engine to completely shut off when idle stop conditions are met. When the vehicle needs to start moving again, the idle start-stop motor system quickly responds to the driver's command, rapidly restarting the engine for seamless transition, significantly reducing fuel consumption and exhaust emissions.
18
1
Share

Is Benelli a Domestic or Joint Venture Brand?

Benelli is considered a joint venture motorcycle brand. Originally an Italian motorcycle manufacturer, Benelli was later acquired by Qianjiang, making it a subsidiary of Qianjiang. Here is some information about Benelli: 1. Introduction: Benelli is one of the oldest motorcycle manufacturers in Italy and the world. 2. Italian Craftsmanship: Classic, innovative, bold, and distinctive—these are the key terms closely associated with Benelli's style. Soon, Benelli will celebrate a century of motorcycle production, and the company remains committed to its unwavering ideals of creating extraordinary products, with the values that bring these products to life enduring forever.
4
5
Share

Can I install a charging pile by myself?

Charging piles can be installed by oneself. Here are some details about charging pile installation: 1. Installation Authorization: Contact the property management company to clarify and obtain installation authorization. Owners who have purchased parking spaces with property rights are eligible to install charging piles. You need to bring your personal ID and parking space ownership documents to the property management company to complete the relevant procedures. 2. Special Circumstances: Some older residential areas may not meet the installation conditions, requiring additional technical equipment. Some communities may have the necessary conditions but prohibit owners from installing charging piles privately. In such cases, you can protect your rights through legal channels. Additionally, determine which type of charging pile is suitable for your parking space.
19
5
Share

Why is there water under the driver's seat?

Failure to close windows during rainy days or drainage outlet issues may cause water accumulation under the driver's seat. Below is relevant information about vehicle cabins: 1. The structure of an automobile cabin mainly includes: cabin shell, doors, windows, interior/exterior trim components, dashboard, body accessories, seats, as well as ventilation, heating, cooling, and air conditioning systems. For trucks and special-purpose vehicles, it also includes cargo compartments and other equipment. 2. Introduction to cabin shell: As the installation foundation for all cabin components, it typically refers to the rigid spatial structure formed by longitudinal/transverse beams, pillars (main load-bearing elements) and connected sheet metal parts. Most bus cabins have visible frameworks, while passenger car bodies and truck cabins don't exhibit obvious frameworks. The cabin shell usually also includes soundproofing, thermal insulation, vibration damping, anti-corrosion materials, sealing coatings, etc. applied on it.
19
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.