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12-31-2017, 01:42 PM | #1 |
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Join Date: May 2010
Location: South California
Posts: 6,188
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thread renovation ?
I'm working with antique aluminum parts, removing brass plugs frozen with time 80+ yrs time. Feeling lucky to have removed some parts, so far, without breaking any casting. Aluminum oxide has made the bond and has indicated that the aluminum threads should be cleaned.
If I do not have right sized taps for the, too large hole, do you know of any way to clean these alum threads without damage ? I will put some lube on reassembly to help prevent recurring problem. |
12-31-2017, 01:46 PM | #2 |
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Join Date: Jan 2011
Location: sw minnesota
Posts: 4,574
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Re: thread renovation ?
you get a bolt that same size and cut some slices in it with the whizz wheel. you have now made a thread chaser!
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12-31-2017, 01:57 PM | #3 |
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Join Date: May 2010
Location: South California
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Re: thread renovation ?
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12-31-2017, 05:57 PM | #4 |
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Join Date: Sep 2014
Location: Wiscasset, Maine
Posts: 1,981
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Re: thread renovation ?
Good idea that cas3 has. I have one of these kits which is hardened steel that is configured the same as he mentioned. This kit works very well!
http://www.sears.com/craftsman-48-pc...p-00942275000P |
12-31-2017, 06:35 PM | #5 |
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Join Date: May 2010
Location: Coral Springs FL
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Re: thread renovation ?
Here's a whole bunch of ideas on how to remove aluminum oxide without
damaging the aluminum. https://www.google.com/search?ei=OXN....0.aRtxl_zyFL0 |
12-31-2017, 06:57 PM | #6 |
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Location: San Antonio, Texas
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Re: thread renovation ?
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01-01-2018, 02:17 PM | #7 |
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Join Date: Apr 2017
Location: Texas Gulf Coast
Posts: 727
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Re: thread renovation ?
If the hole's are already too large, you can repair them with a Helicoil kit. They are sold at most auto part's stores. you tap the hole with a special tap and install the helicoil for the proper size bolt. Al
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01-01-2018, 05:29 PM | #8 | |
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Location: South California
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Re: thread renovation ?
Quote:
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