swindad2
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- Franklin, KY
So I decided to let my local machine shop tackle my air pack rebuild. I know, should have done it myself, but the combination of my health, work space, and too many other projects made the decision for me. So they called me and said a part was missing from the rebuild kit, to come and look at it. I agreed that it was not in the kit, but I received the kit, opened, with the truck, so I assumed maybe it was just missing. Ordered another rebuild kit, and it contains the same parts. The part in question looks like a bushing (metal core with rubber surround). It fits over the push rod shaft, inside a smaller housing, at the joint where the two halves of the pump meet. I have read through all the rebuild threads on the site, and looked at the TM/rebuild guide. You can see the part in the diagram, but nowhere does it mention removing or replacing it. It is not numbered in any of the diagrams. I assume since it is a rubber part, over the shaft, that it should be replaced. I have included pics to show what it looks like. It is pretty chewed up. Where am I going to find this thing, or should it have been left alone?
Or is this a combination of two of the seals I'm just not seeing. The metal part is throwing me off. It appeared to have been one part.
![20140516_101025.jpg 20140516_101025.jpg](https://www.steelsoldiers.com/data/attachments/336/336218-63ca5b17e6c316d628a53e6d85360160.jpg)
![20140516_101039.jpg 20140516_101039.jpg](https://www.steelsoldiers.com/data/attachments/336/336219-4815e3ee88aab7beb1752008bc7f803b.jpg)
![20140516_100441.jpg 20140516_100441.jpg](https://www.steelsoldiers.com/data/attachments/336/336220-fe75b1cdfe6073f8e359a2903eb680f0.jpg)
![20140516_100457.jpg 20140516_100457.jpg](https://www.steelsoldiers.com/data/attachments/336/336221-58dba17095a0d8d9c5f5f2f1f5e73ad0.jpg)
Here is the rebuild manual thanks to rustystud: http://www.steelsoldiers.com/showthread.php?118450-Air-Pack-Rebuild-Manual
Or is this a combination of two of the seals I'm just not seeing. The metal part is throwing me off. It appeared to have been one part.
![20140516_101025.jpg 20140516_101025.jpg](https://www.steelsoldiers.com/data/attachments/336/336218-63ca5b17e6c316d628a53e6d85360160.jpg)
![20140516_101039.jpg 20140516_101039.jpg](https://www.steelsoldiers.com/data/attachments/336/336219-4815e3ee88aab7beb1752008bc7f803b.jpg)
![20140516_100441.jpg 20140516_100441.jpg](https://www.steelsoldiers.com/data/attachments/336/336220-fe75b1cdfe6073f8e359a2903eb680f0.jpg)
![20140516_100457.jpg 20140516_100457.jpg](https://www.steelsoldiers.com/data/attachments/336/336221-58dba17095a0d8d9c5f5f2f1f5e73ad0.jpg)
Here is the rebuild manual thanks to rustystud: http://www.steelsoldiers.com/showthread.php?118450-Air-Pack-Rebuild-Manual
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