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05-31-2008, 12:26 AM
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#1 |
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Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
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What size are the threads on a 3/8" sending unit?
Trying to re-plumb. I have 3/8 and 1/4 NPT fittings, neither works. I need some kind of adapter...
Should have mentioned, I'm talking about the fuel tank sending unit... Last edited by Jim_PA; 05-31-2008 at 01:28 AM. |
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05-31-2008, 02:39 AM
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#2 |
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Registered User
Join Date: Apr 2004
Location: Las Vegas, NV
Posts: 2,188
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Re: What size are the threads on a 3/8" sending unit?
What is it going into? 3/8 NPT uses 1/2" threads.
__________________
RIP EastSideLowLife '72 C20 SWB convert. 5 lug, LS1/4l60e |
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05-31-2008, 05:13 PM
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#3 | |
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Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
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Re: What size are the threads on a 3/8" sending unit?
Quote:
I already have the 1/4 and 3/8 Male NPT fittings for my fuel line, but the connection at the carb and the connection at the sending unit needs some kind of adapter to work with my NPT fittings. I guess it will have to come down to a trip to the H/W store with my sending unit and fittings in hand 
Last edited by Jim_PA; 05-31-2008 at 05:22 PM. |
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05-31-2008, 05:36 PM
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#4 |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: What size are the threads on a 3/8" sending unit?
The fitting on the carburetor is probably an "inverted flare", like on brake lines. IIRC the threads are 3/8-24, same as regular "fine" thread.
Is this what you are looking for? http://www.fittingsandadapters.com/femcon1.html Or the "male" version? http://velvac.thomasnet.com/viewitem...267?&forward=1 Last edited by LONGHAIR; 05-31-2008 at 05:40 PM. |
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05-31-2008, 06:02 PM
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#5 |
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The Older Generation
   
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,423
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Re: What size are the threads on a 3/8" sending unit?
 I think you need flare fittings not NPT.... LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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05-31-2008, 06:49 PM
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#6 |
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Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
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Re: What size are the threads on a 3/8" sending unit?
I got aeroquip socketless hose, and the only fittings available are AN or 1/4 & 3/8 NPT.
So, I need to get a 3/8 inverted flare male to 1/4 (or 3/8) NPT female adapter. Thanks all! - |
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