GLE 350 D 3.0 AMG LINE 4M 9G
- Year/Month: 2017/0
- Stock ID: T117611
- Transmission: Automatic
- CC: 3000
- Mileage: 104965
- Fuel Type: Diesel
- 200 Views
The exhaust valves in the Mercedes Benz Gl class 3.0 for sale are designed to work in aggressive conditions, being constantly exposed to high pressure, chemicals, and extreme temperatures. Therefore, particularly resistant materials are used in their manufacture and meticulous observance of all phases of the technological process is required.
Various Cases
Even the smallest of errors can cause a significant reduction in the service life of the final product. Currently, it is precisely the manufacturing defects that represent one of the major causes of failure of the exhaust valves. In various cases, the deterioration of the component state leads to its systematic overheating. This phenomenon may be due to several factors, including the use of low-quality fuel. During the combustion process, the fuel that has a low octane rating causes knocking. This leads to a sharp increase in temperature and premature wear of the component. Similar effects can be caused by the malfunction of the fuel system, due to which the process of forming the fuel and air mixture is broken. As a result of constant exposure to high temperatures, the valve stem may become deformed and the component itself may jam.Â
In the Vehicle
Improperly adjusted valve intervals, defective sealing of the valve plate, formation of carbon deposits on the contact surfaces, wear and soiling of individual elements, loosening of the return spring; these are all factors that reduce considerably the efficiency of heat exchange processes. As a consequence, the valve plate, which is subject to continuous overheating, could burn out, the engine cylinders can lose their tightness and the engine itself could suffer operating anomalies. Besides, when a buyer decides to pay Mercedes Benz Gl class 3.0 price and when he hears the noise inside the vehicle such as the metallic noise or the steering can indicate the presence of the problem with the valves. Even unregulated valve clearance can be felt and then the valve rockers can be adjusted. All other repairs are not possible without replacement, although you can try with careful cleaning. Unlike valve clearance, lots of other signs of wear cannot be felt but are manifested in deterioration of engine performance and increased fuel consumption. However, problems can also be caused by other engine components.Â
A Little Work
Therefore an exact analysis of faults and their causes is required. Actually, the assembly and disassembly of the valve can also be done without using a mechanic, as they require only a little work. However, it is advisable to go to a workshop, because it is a replacement that directly involves the engine. Even the adjustment of the valves requires some skill and experience, although DIY work may seem easy at first sight. While it should also be noted that the operation of the drain valve cannot be restored through repair. Despite being made of high-strength metal alloy, in the event of melting or deformation, the valve can only be replaced. Before installing the spare part, the head should be removed. This means that visiting a technical service station is inevitable. After replacement, the valve should adapt to the seats inside the blockhead by friction. For this purpose, a special lapping paste is used. To correctly assemble the motor, it is recommended to use a marker to mark the various positions of the elements. After installing the engine, a test guide should be made at a moderate speed.