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1.存在问题我单位现有20辆北方奔驰2629型6×6全轮驱动沙漠工程运输车,主要用于地震勘探设备的运输。该车配装的奔驰OM442型V8自然吸气式发动机,具有故障率低、可靠性高的优点。但随着使用时间的增长,其发动机的各部件磨损逐渐增大,润滑系统的润滑能力变差,其中1台运输车的发动机出现了因抱瓦、连杆折断,将汽缸体捣裂的恶性故障。大修发动机需要更换汽缸体、曲轴、连杆、四配套等重要部件。该发动机为奔驰公司70年代的产品,配件供应奇
1. Existing problems My unit has 20 North Benz 2629 6 × 6 all-wheel-drive desert engineering transport vehicles, mainly for the seismic exploration equipment transport. The car equipped with Mercedes-Benz OM442 V8 naturally aspirated engine, with low failure rate, high reliability advantages. However, with the growth of the use of time, the wear of each part of the engine is gradually increased, and the lubricating ability of the lubricating system is deteriorated. One of the engines of the transporter has the viciousness of breaking the cylinder block due to the holding of the tile and the connecting rod, malfunction. Overhaul the engine needs to be replaced cylinder block, crankshaft, connecting rod, four ancillary components and other important. The engine for the Mercedes-Benz 70’s products, parts supply odd