The main reasons for the easy breakage and failure of the cylinder pad are as follows.

(1) the quality of the cylinder pad is not good. If the material made of cylinder cushion is excellent, but there is no correct machining technology, for example, manual cylinder cutting and flanging, edge wrapping and so on, often made cylinder gaskets are not neat, and the edge is not tight. If the asbestos in the copper skin is unevenly spread, especially in the vicinity of the combustor, it is most likely to break the cylinder pad. Therefore, the mould should be used to make the cylinder pad to ensure that the flanging is neat and there is no gap.

(2) the cylinder head bolts are not tightened or the tightening force of each bolt is uneven, so that the pressure of the cylinder cover is uneven. As the Mercedes cylinder pad in the north of Baotou is not fully fitted to the joint surface of the cylinder body and the cylinder cover. So it's the easiest to break the cylinder pad.

(3) long time in the oil supply time (or ignition time) to work prematurely.

(4) when the Mercedes cylinder pad in the north of Baotou is often damaged in the same part, it is mostly caused by the deformation of the cylinder cover.

(5) when gasoline engines use gasoline with low octane number, the ignition time is not adjusted in time, and "deflagration" often occurs and the cylinder pad is washed out.

(6) the compression ratio is too high.

(7) the cylinder sleeve is too low, so it is easy to move gas and make the cooling water into the cylinder. Therefore, when installing the cylinder sleeve, it is required that the cylinder liner step surface should be higher than the upper plane 0.04-0.1Omm of the body, so that the cylinder sleeve can be pressed into the cylinder body after loading the cylinder cushion and the cylinder head.

(8) when the cylinder sleeve is loaded, the cylinder height of each cylinder is not consistent, and the cylinder pad is often washed out.

(9) the used cylinder gasket is cleaned in the oil during the inspection and maintenance, so that the oil is immersed in the asbestos layer of the cylinder gasket, so that the asbestos and oil will be extruded together and the cylinder cushion will be damaged when it is re installed.

(10) improper use of internal combustion engines, for example, frequent throttle, sudden acceleration, and so on, can also cause early damage to the cylinder pad.

(11) Baotou northern Mercedes Benz accessories cylinder pad used for a long time, the number of disassembly and disassembly more, so that the cylinder cushion elasticity is insufficient, can not play a good sealing effect. If you continue to use it, it will go bad.