2009年6月24日

康明斯柴油TCC颤抖:一个新的扭曲

艾德李

2001年DODGE RAM 2500 4X4,带有康明斯柴油发动机和618变速器,带到了一个传输商店,并抱怨TCC颤抖。到了商店前三到四个月,客户注意到了TCC的变化申请感觉。他说,TCC适用突然变得更加积极或突然。这种情况在三到四个月的过程中发脾化,直到颤抖问题的开始。客户已退休并使用车辆在全国各地拖他的野营拖车。引擎中添加了几种性能增强功能,包括售后市场涡轮增压。由于发动机性能提高了更好的牵引能力,因此他没有抱怨更坚定的TCC涂抹,直到它发展成颤抖。

传播在车辆被重建93000英里January 2007. At that time, a rebuilt torque converter was also installed. The vehicle returned to the transmission shop in May 2008, because the torque converter bolts had come loose. During that repair, the flywheel was replaced, the torque converter was rebuilt and upgraded to include a billet cover. The TCC friction material was replaced, but the original piston and damper assembly had been reused.

Now the truck has returned to the shop with the shudder complaint. All of the usual preliminary checks were performed on the vehicle, including checking the line pressure and checking the cooler flow. Since all of the external checks were within the proper parameters, the problem was narrowed down to the converter. When the converter was cut apart, the TCC friction material was found to be degraded. The surface had been hot because of the shudder issue, but it also had the appearance of extreme use. The reason for the friction material failure was not immediately obvious. The turbine hub seal and the TCC piston bore were both in good condition. The reaction surface on the cover was also good. Other than the lining material, the only things that did not look good were the springs in the damper assembly. It was obvious that the damper springs were continually being bottomed out. The technician reasoned that the combination of the enhanced performance of the engine and the increased loads due to towing the camping trailer, were more than the capacity of the damper assembly.

变矩器Rbob游戏怎么下载ebuilder开始搜索替代阻尼器组件。他很快发现有两个明显不同的类型。一个装配风格的内弹簧与外弹簧的长度相同,另一个具有比外部弹簧短的内部弹簧。他的原始阻尼器组件是内弹簧较短的类型。他以后了解到内弹簧的较短内弹簧的阻尼器是一个适用于康明斯柴油发动机的两个阶段。内部和外弹簧具有相同长度和外弹簧的阻尼器是一个阶段,第一设计用于V10燃气发动机(图1)。后来模型V10燃气发动机与康明斯柴油发动机相同的内弹簧,但是内弹簧压入外弹簧。这是为了易于安装而完成,并使平衡更容易。靠近弹簧的检查表明,外弹簧的中心线圈的直径略小于线圈的其余部分。外弹簧的较小直径中心线圈在压入后保持内部弹簧上的位置。内弹簧都具有一致的O.D。并将容易地装入外弹簧,直到它们到达中心(图2.)。

由于发动机性能增强,技术人员决定用一个阶段替换他的两级应用阻尼器,因为它具有略高的初始应用容量。

这被证明是一个良好的决定,因为当更换阻尼器并且在车辆中重新安装转矩转换器时,TCC应用恢复正常。bob游戏怎么下载

对于此客户来说,用阻尼器替换正确的应用程序阻尼器对于另一个应用程序是最好的决定。其他客户可能不是这种情况;应正确识别阻尼器并在适当的应用中使用。

Ed Lee是一个Sonnax技术专家,他们在重点转换器Rebuilders的兴趣问题上写道。bob游戏怎么下载Sonnax支持这一点bob游戏怎么下载Torque Converter Rebuilders协会

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