一辆仪征汽车发动机，气缸垫被冲毁，因急于出车；故未等发动机冷却即进行抢修。但自此之后，气缸垫竟在一月之内更换四次。后拆下气缸盖仔细检测，发现气缸盖翘曲变形。经磨削气缸盖和气缸体平面后，气缸垫被冲故障得以根除。仪征发动机气缸盖材料是铝合金制品，在热机拆装过 A Yizheng car engine, cylinder pad was destroyed, due to rush out of the car; it is not waiting for engine cooling repair. But since then, the cylinder liner was actually replaced four times in January. After removing the cylinder head carefully tested and found cylinder head warpage. After grinding the cylinder head and cylinder block plane, the cylinder cushion was erased and eliminated. Yizheng engine cylinder head material is aluminum alloy products, thermal machine disassembly