 NLA gasket and return fuel line question. |
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| Tdskip |
 Oct 15 2020, 06:19 AM
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#1
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Advanced Member  Group: Members Posts: 3,755 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None 
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Porsche 914-201-147-10 which is the fiber gasket for the outgoing fuel pipe that attaches to the bottom of the tank. It shows NLA, Pelican doesn't have an alternative. Don't think there is anything that special about it, but wanted to ask where you guys like to source a replacement to prevent leaks.
On a carbed car where the return fuel line will not be used any tips on how to like to block that line on the tank so it doesn't leak? Seems like better to block it at the tank rather than on the return line at the rear of the car so no fuel is in the return line. I'll be using a low pressure pump and have not has issues with this pump needing a return line. Thanks (and early good morning). |
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| brant |
Oct 15 2020, 06:37 AM
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#2
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914 Wizard Group: Members Posts: 12,167 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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A carb system benefits from a return line
Cooler fuel Less vapor lock |
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| Dion |
Oct 15 2020, 07:04 AM
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#3
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RN Group: Members Posts: 2,926 Joined: 16-September 04 From: Audubon,PA Member No.: 2,766 Region Association: MidAtlantic Region
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I believe @rotary914 used to sell the fiber washers not sure if he still has a supply.
Agree with Brant, fuel return line is helpful. |
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| bbrock |
Oct 15 2020, 08:13 AM
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#4
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(Dion @ Oct 15 2020, 07:04 AM)  I believe @rotary914 used to sell the fiber washers not sure if he still has a supply. Agree with Brant, fuel return line is helpful. (IMG:style_emoticons/default/agree.gif) plus the return line keeps the reserve fuel bowl in the tank filled. And +1 on getting parts from rotary914. |
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| JFJ914 |
Oct 15 2020, 08:19 AM
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#5
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States 
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I bought mine at ACE Hardware
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| Tdskip |
Oct 15 2020, 08:36 AM
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#6
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Advanced Member Group: Members Posts: 3,755 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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Just a fiber fuel safe washer from wherever I can source it?
Assuming you guys have a fuel pressure regulators that you’ve put into your fuel system where there’s a return line coming off the regulator? @brant - you posted a very nice diagram some years ago of the different options, that was nicely done. |
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| bbrock |
Oct 15 2020, 08:44 AM
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#7
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(Tdskip @ Oct 15 2020, 08:36 AM) Assuming you guys have a fuel pressure regulators that you’ve put into your fuel system where there’s a return line coming off the regulator? Yeah. I haven't finished mine yet but you need a bypass style regulator. I'll be putting this one in. https://patrickmotorsports.com/products/fue-pmo-fpr (IMG:http://www.914world.com/bbs2/uploads_offsite/cdn.shopify.com-20845-1602773086.1.jpg) |
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| bdstone914 |
Oct 15 2020, 10:10 AM
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#8
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bdstone914 Group: Members Posts: 5,280 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
@Tdskip
A better alternative is to ditch the original nipples and tap the threaded boss for 1/4 NPT. Install a pipe thread to AN6 fitting. It was a crapy system prone to leaking. I have made replacements from neoprene for the fiber washers. |
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| brant |
Oct 15 2020, 10:51 AM
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#9
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914 Wizard Group: Members Posts: 12,167 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains
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I think I took this from another member 10+ years ago
but its a good diagram: Attached image(s) 
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| Tdskip |
Oct 15 2020, 12:03 PM
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#10
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Advanced Member Group: Members Posts: 3,755 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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What fiber material will work? Flat like original or an o-ring OK?
Thanks! |
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| Mikey914 |
Oct 15 2020, 02:09 PM
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#11
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The rubber man Group: Members Posts: 12,772 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Do not use EPDM rubber it will dissolve. Viton will work.
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| Tdskip |
Oct 15 2020, 03:55 PM
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#12
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Advanced Member Group: Members Posts: 3,755 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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Thanks
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