 Gas tank threaded fittings size? |
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| mb911 |
 Jan 15 2019, 07:48 PM
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#1
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914 Guru  Group: Members Posts: 6,854 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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I need to chase the threads on my tank where the fuel lines connect.. Anyone know off the top of your head? Need to order a die for it.
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| Chi-town |
Jan 16 2019, 12:15 AM
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#2
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Senior Member Group: Members Posts: 850 Joined: 31-August 18 From: Disneyland Member No.: 22,446 Region Association: Southern California |
Tap the i.d. to 1/4 npt and lose the leaky stock nipples.
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| mb911 |
Jan 16 2019, 06:48 AM
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#3
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914 Guru Group: Members Posts: 6,854 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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QUOTE(Chi-town @ Jan 15 2019, 10:15 PM)  Tap the i.d. to 3/8 npt and lose the leaky stock nipples. My only issue with that is the sock doesn't get used then and have figure out some sort of screen ahead of the fuel pump. |
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| bdstone914 |
Jan 16 2019, 07:20 AM
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#4
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bdstone914 Group: Members Posts: 4,522 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(mb911 @ Jan 16 2019, 06:48 AM) QUOTE(Chi-town @ Jan 15 2019, 10:15 PM) Tap the i.d. to 3/8 npt and lose the leaky stock nipples. My only issue with that is the sock doesn't get used then and have figure out some sort of screen ahead of the fuel pump. @mb911 Ben, I prefer the internal taping to 1/4 NPT and using a threaded fitting inside the nipple. The internal sock never made sense to me. Why trap the crud inside the tank. A simple visible external filter is better. You will not get a common tap to work as ne of the nipples is too close to the seam. I made one from a front 911 spindle nut. Others have found a Nissan spindle nuts has the same threads. You can also grind down a thread file to file the threads. It is only the sock nipple that has the clearance problem. I can send you a spindle nut if you want to clean up the threads. You need to grind down the ears. If you stay with the nipples and paper gaskets make sure you hone flat the sealing surface. It is only 1mm wide and must be perfectly flat to seal. Bruce Attached thumbnail(s) 
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Posts in this topic
mb911 Gas tank threaded fittings size? Jan 15 2019, 07:48 PM
wysri9
I need to chase the threads on my tank where the ... Jan 15 2019, 10:54 PM
bdstone914
Tap the i.d. to 3/8 npt and lose the leaky stock ... Jan 16 2019, 07:14 AM mb911 Well that maybe the way to go and just save some p... Jan 16 2019, 07:53 AM andys Here's a link to one of my posts where I used ... Jan 16 2019, 09:22 AM Chi-town
Well that maybe the way to go and just save some ... Jan 16 2019, 10:12 AM mb911 My tank was just finished so good timing Jan 16 2019, 11:16 AM Mike Bellis This fitting fits our tank.
https://www2.cip1.com... Jan 16 2019, 09:19 PM Mike Bellis
This fitting fits our tank.
[url=https://www2.ci... Jan 16 2019, 09:20 PM cary Ben I'll find my chaser when I get out to my s... Jan 17 2019, 09:48 AM Bartlett 914 I like the idea of using a 1/4 pipe nipple. You wi... Jan 17 2019, 10:29 AM mb911 I threaded this morning to 1/4 pipe.. This Will si... Jan 17 2019, 11:25 AM |
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