Spinneyhill Posted April 17, 2015 Share Posted April 17, 2015 (edited) I am overhauling the water pump in my 1930 Dodge DC-8. I have made a new shaft from silver steel and new bushes - outer is bronze, the inner is "oilite". Lubrication is by oil at both bushes. I am overhauling it because water was coming out of the rear bush oiler.There is a gland packing in front of the inner bush. What should be on the inside, between the impeller and the housing (which is flush with the inner end of the bush)? I believe it is called a "packless" seal and have seen references to carbon. I have also seen this diagram at http://airconditioningmanuals.tpub.com/TM-750-254/TM-750-2540026.htm showing a seal of some kind with a spring between it and the impeller. Edited April 17, 2015 by Spinneyhill (see edit history) Link to comment Share on other sites More sharing options...
Spinneyhill Posted April 18, 2015 Author Share Posted April 18, 2015 I have answered my own question I think. Here is a diagram of a 1935 Studebaker Dictator water pump. If you disregard the bypass it is a very similar design to the Dodge. So it looks like there was no "seal" as such, just a thrust washer and small clearances. The "oilite" bush would prevent water coming out of the oil cup. Link to comment Share on other sites More sharing options...
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