How to deal with engine cylinder scuffing How to avoid engine cylinder scuffing

The engine is the core component of the car and also the most important component. When the engine is working normally, there is a thin layer of oil film between the cylinder and the piston ring. This layer of oil film reduces friction and protects the cylinder. If this layer of oil film is gone or damaged, it will cause damage to the cylinder.

How to deal with engine cylinder pulling

Many car models have strict requirements on the viscosity of the engine. Blindly increasing or decreasing the viscosity of the oil may cause irreversible scratches or cylinder pulling to the engine. For example, Japanese cars generally recommend the use of low-viscosity oil, so don't blindly increase the viscosity of the oil. The dynamic variable valves of Japanese engines generally use hydraulic control. Excessive oil viscosity will lead to increased hydraulic resistance and control lag, which will cause the valve to fail to respond correctly and in time, and then lead to increased carbon deposits.

How to avoid engine seizure

If the original car requires the use of fully synthetic motor oil, then try to use it. Do not use low-viscosity mineral motor oil without authorization. Low-quality motor oil will easily condense into sludge under high temperature conditions and adhere to the cylinder injection hole, which may clog the injection and affect the timely and sufficient injection of the motor oil. The friction of the piston ring will increase, which will also cause cylinder pulling.

Some engines consume too much oil, such as the early Volkswagen EA 888 engine. The consumed oil cannot be completely separated by the oil-gas separator and will re-enter the combustion through the intake pipe. The solid carbide formed after the oil burns may block the piston ring oil injection hole and affect the oil injection. In severe cases, it may cause cylinder pulling.

Will carbon deposits cause engine cylinder seizure?

Many people like to add more oil than the upper limit of the dipstick when changing the engine oil. However, they do not know that the excess oil will be discharged to the oil-gas separator through the forced ventilation of the crankshaft for separation, and then re-combusted through the intake manifold. The carbon deposits produced will also clog the piston ring oil injection holes, which may cause cylinder pulling.

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The engine oil level generally cannot be lower than the lower limit of the dipstick. When the oil level is too low, the oil pump cannot pump enough oil, causing the oil pressure to be too low and the oil warning light to light up. Once it lights up, you need to add oil as soon as possible. At this time, there is no rush to accelerate and drive violently to avoid abnormal engine wear.