Ormond
Member Since: 09 Feb 2024
Location: Cumbria
Posts: 2
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| Delivery valve hitachi compressor |
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Evening, I’m new to the forum but have been following for a few weeks now, a lot of helpful information. I’m currently rebuilding my compressor , hitachi one….I tried to get into the delivery valve to check it and replace it most likely. When I tried to undo the nut, it turned about a third of a turn and went tight, then wouldn’t tighten up either. Any tips how to get it undone so I can replace it. Thanks
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 9th Feb 2024 10:35 pm |
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Ormond
Member Since: 09 Feb 2024
Location: Cumbria
Posts: 2
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Update…common issue, needed drilled out and re tapped to clean the threads, new delivery valve assembly installed.
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| 19th Feb 2024 5:16 pm |
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reb78
Member Since: 21 Apr 2018
Location: Herts
Posts: 222
 
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Sorry - too late to this now as you have resolved but I have just rebuilt my Hitachi compressor too.
I had a few bits go like this and what I found worked was to turn gently, add some penetrating fluid, gently turn back and forth adding more fluid as appropriate and eventually it would turn more and more until you could get a full turn and release the fitting completely. It worked for me - key thing was to avoid what i would normally do and wrench it round and rip the threads!
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| 23rd Feb 2024 6:20 pm |
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RemiW
Member Since: 08 Oct 2013
Location: Toronto
Posts: 2
 
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Ormond wrote:Update…common issue, needed drilled out and re tapped to clean the threads, new delivery valve assembly installed.
What is the tap size?
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| 28th Jun 2024 1:57 am |
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