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Expert
Posts: 1316
 
Location: Belgium, 40 miles south of Brussels | Hi everyone,
I do not have direct access to my '58 Plymouth right now.
Can someone tell me what NPT size is the fitting of the power steering hose that goes into the pump ?
Thank you.
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Expert
Posts: 3778
  
Location: NorCal | Pumps of that era don't use NPT threads per se, the pump has an inverted flare that takes a 3/8" tube with a flare nut thread of 5/8"-18. |
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Expert
Posts: 1316
Location: Belgium, 40 miles south of Brussels | Thanks.
In fact, my question is related to the fact that I would like to test the pressure going out of my pump.
I'd like to buy a hydraulic test kit, but I need to know which fitting might be used.
 (pump.png)
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 pump.png (79KB - 249 downloads)
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Extreme Veteran
Posts: 309
Location: Western Colorado | I purchased a kit manufactured by LANG Tools, p/n TU-22a. It had the fittings needed to test the pump on my 58 N/Y wagon.
However, I do not remember which fittings I used.
I also don't know if it's available in your part of the world. It say's it's made in the USA of foreign and domestic parts.
Bob |
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Expert
Posts: 1316
Location: Belgium, 40 miles south of Brussels | The kits I'm looking at have only UNF 7/16-20 and NPT 1/4-18. |
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Elite Veteran
Posts: 1141
Location: Blackpool, United Kingdom. | Hi Vincent,
You should be able to get a adapter from a local hydraulic pipe firm that will do the job. |
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Expert
Posts: 1316
Location: Belgium, 40 miles south of Brussels | For future reference, I was able to check on an extra power steering hose I had (I completely forgot about it), and it's 7/16 UNF.
Somehow, it's strange that it's not an NPT thread (57chizler was right), but there it is.
Edited by Chrome58 2022-03-08 12:38 PM
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