M274 Engine Cylinder Block Mercedes Benz 204 205 253 With L4 Cylinder

Mercedes-Benz 204 212 213 205 253 447 448 M274 engine middle cylinder assembly

What are the causes of engine cylinder wear?
The wear of the engine cylinder is divided into normal wear and abnormal wear. (1)
The main reason for the normal wear of the cylinder is that the upper part has the highest working temperature, and the oil film is not easy to form, and the upper part has the worst lubrication. The main reason for the uneven radial wear of the cylinder: the blowing and scouring action of the intake air causes the lubricating oil on the cylinder wall to be diluted and form more corrosive components. (2)
Abnormal wear 1 The engine cylinder will produce severe corrosive wear under the conditions of low temperature and insufficient fuel combustion. When the engine coolant temperature is low or the low temperature starts frequently, it is easy to produce more acidic substances. The acidic substances directly contact the cylinder to form a fragile thin layer, which peels off under the action of external force, thereby forming corrosive wear. 2 enter the cylinder
The air contains a lot of dust and causes severe abrasive wear. Impurities and dust particles in the engine oil cause severe abrasive wear. 4 new
When the cylinder without running-in is directly put into operation after overhaul or overhaul, due to the uneven surface of the cylinder and the piston, they will be embedded in each other during the movement to produce abrasive wear, and draw marks parallel to the axis of the cylinder will be produced on the surface of the cylinder.
Adhesive wear. When the cylinder and the piston ring slide relatively under the condition of poor lubrication, the direct friction between the tiny part of the metal surface between the two generates local high temperature, which makes them melt and adhere, fall off, and gradually expand to produce adhesion.
着wear. 6 Wear after broken ring. Piston rings usually have 3~4 lanes
The first ring is easier to break. After the ring was broken, the lubrication condition of the second ring was destroyed, which intensified the wear of the cylinder.

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Packing For transport

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Company Introduction

Our company has been engaged in auto parts for more than ten years, with sufficient inventory, affordable price, qualified quality, large quantities of supply, complete models, crankshaft connecting rod in cylinder head of engine of power system, etc. You can choose engine parts with confidence, sincerely look for long-term partners and create a better life with you.

FAQ

Q: How long has your company been engaged in the auto parts industry?
It has been more than ten years. Our advanced products include bare engine, engine assembly, cylinder head, cylinder block, crankshaft, camshaft, piston, etc.

Q: What are your strengths

We are a factory and have advantages in all aspects. We have great advantages not only in price but also in product quality. We choose the best products for our customers.

Q: What is the delivery time

It depends on your actual order, our stock of goods is sufficient, 90% of products are in stock and can be delivered within 48 hours

Q: What is your payment method

We accept TT, Western Union remittance and PayPal

Q: After-sales service

If there are any quality problems in the warranty, please contact us and tell us the details. We have an after-sales service team to help you solve your problems