发动机前盖板漏油故障返工工艺[精选].ppt

Page * of 7 （6）在安装前盖板时，需用冷却出水管的螺柱和螺栓定位好前盖板，然后去拧紧前盖板螺栓和螺母，最终力矩10+/-1Nm； (6)When assembling front timing cover, you need studs and bolts of coolant outlet pipe to fix position of front timing cover, then go to tighten the front cover bolts and nuts, eventually 10 + / - 1 nm torque; （7）拧紧前盖板螺栓和螺母时，需要按顺序拧紧，如图1： (7) When tightening front timing cover bolts and nuts, you need to tighten in sequence, as shown in picture 1 （8）装前油封时，必须要用工装装配前油封，卡到位为止。 (8)When assembling crankshaft oil seal, you need specified tool to assemble crankshaft oil seal and card in place. 3.需要更换的零件 3. Parts need to be replaced Page * of 7 picture1 Thank you Page * of 7 * LOGO PUMA 2.4前盖板漏油诊断和维修指导 PUMA 2.4 front timing cover oil leak diagnose and repair Page * of 7 Page * of 7 1.诊断漏油部位方法 1.The method of diagnosing oil leak 因前油封与前盖板有结合位置，所以当前油封漏油时，可能导致误判为前盖板漏油。在诊断前盖板漏油时，先得确认是前盖板漏油还是前油封漏油。 Because front timing cover has combine face with crankshaft oil seal, so when crankshaft oil seal oil leak, we may wrong think that it is front timing cover oil leak. Before diagnosing front timing cover oil leak, we must ensure it is front timing cover oil leak or crankshaft oil seal oil leak. 1）诊断是前油封漏油还是前盖板漏油 1)Diagnosing front timing cover oil leak or crankshaft oil seal oil leak 如果发现发动机前端有漏油迹象，技师需用手电筒配合观察油迹位置，分析方法如下表： If finding there is oil in the front of engine, mechanic has to use flashlight to observe where the oil is, the following is the method of analysis. 序号 number 油迹分布位置 Position of oil 图片示意 picture 诊断结果 Diagnosing result 1 前盖板四周有油迹 There is oil all around front timing cover 前盖板漏油 Front timing cover oil leak 2 前油封四周有油迹（需先拆掉皮带及减振皮带轮观察）(There is oil all around crankshaft oil seal(before observing, we need to dismantle the belt and the crank idler) 前油封漏油 Crankshaft oil seal oil leak Page * of 7 2）诊断前盖板漏油部位方法 2)The positions of oil leak 前盖板漏油部位包括T型结合面(6个，A、B、C、D、E、F)、检视盖、前盖板底部，如下图所示： Front timing cover oil leak includes T co