The Ford Barn

GB SISSON · 09-29-2023, 07:58 AM

Please school me on the special fittings on my holley carb, both fuel and vacuum. In the past I have been guilty of threading tapered pipe fittings into carbs and fuel pumps in order to get something running. For years I have saved the brass nuts ford used and employ them when I can. I now find myself with a really nice Holley 847 from ebay and none of those special nuts. I have done a search on google and the barn with no results as I don't know what they are called. Thanks in advance, Gary

Kens 36 · 09-29-2023, 08:08 AM

I always heard them called Ford nuts. You can buy them from Third Gen Automotive https://thirdgenauto.com/product/new...-fittings-1-4/.

Ken

jimTN · 09-29-2023, 08:17 AM

If you all are referring to the current "ferrel" nuts sold by several vendors, I have found them to not seal as well as originals. I have had to tighten, loosen and tighten severas times to get them to seat right.

nelsb01 · 09-29-2023, 09:59 AM

If you are a V-8 Club member, you might be interested in the latest issue of the V-8 TIMES (Sept/Oct) as it has an article about Ford fuel pumps and talks about fittings and lines. Has a great picture of nuts and fittings.
The issue is at the printers now and should be mailed early October.
Otherwise, if a member, you could look at the digital version of the article now as it is available online (need to be a member of the Club to have access).

rich b · 09-29-2023, 10:44 AM

Search of Edelmann's part number 108400 will usually find both reasonable and high $ sources for the Ford nuts.

V8COOPMAN · 09-29-2023, 02:27 PM

Sponsored Links (Register now to hide all advertisements)

.

Here ya go! Third Gen and Mac VanPelt have these.

Weatherhead (Eaton) 6100x3

Coop

.

1952henry · 09-29-2023, 02:36 PM

Fuel would be weatherhead 59x4. Napa has them. Believe Napa has the vacuum affair as well. At least some do.

GB SISSON · 09-29-2023, 04:30 PM

Thanks all! We have napa on the island so I will try them first. This forum is a great community to be part of.

Terry,OH · 10-01-2023, 07:21 AM

Over time the size of the vacuum tube changed in diameter and so did the vacuum fitting but all the years the original fittings were 1/2" hex head pre war. Today the original size is hard to find, they are now made with 7/16" hex head.

Mart · 10-02-2023, 02:26 PM

There seems to be some mixing up of the vacuum nuts with the fuel inlet nuts.

Vacuum nuts have a 3/8 unf thread and a 3/16" hole.

Fuel inlet nuts have a 1/2" UNF thread and a 1/4" hole. Some are sold with a captive ferrule. These do not work as well as those that use a separate 1/4" ferrule, known in some areas as an olive. You can pull the captive ferrule out and use the nut with a separate ferrule, which works better.

Mart.

09-29-2023, 07:58 AM	#1
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,949	Tubing nuts at carb Please school me on the special fittings on my holley carb, both fuel and vacuum. In the past I have been guilty of threading tapered pipe fittings into carbs and fuel pumps in order to get something running. For years I have saved the brass nuts ford used and employ them when I can. I now find myself with a really nice Holley 847 from ebay and none of those special nuts. I have done a search on google and the barn with no results as I don't know what they are called. Thanks in advance, Gary __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)

09-29-2023, 08:08 AM	#2
Kens 36 Senior Member Join Date: May 2010 Location: Northern Illinois Posts: 377	Re: Tubing nuts at carb I always heard them called Ford nuts. You can buy them from Third Gen Automotive https://thirdgenauto.com/product/new...-fittings-1-4/. Ken __________________ https://www.nirgv8.org

09-29-2023, 08:17 AM	#3
jimTN Senior Member Join Date: May 2010 Location: Powell, TN Posts: 2,509	Re: Tubing nuts at carb If you all are referring to the current "ferrel" nuts sold by several vendors, I have found them to not seal as well as originals. I have had to tighten, loosen and tighten severas times to get them to seat right.

09-29-2023, 09:59 AM	#4
nelsb01 Senior Member Join Date: May 2010 Location: Up North Posts: 627	Re: Tubing nuts at carb If you are a V-8 Club member, you might be interested in the latest issue of the V-8 TIMES (Sept/Oct) as it has an article about Ford fuel pumps and talks about fittings and lines. Has a great picture of nuts and fittings. The issue is at the printers now and should be mailed early October. Otherwise, if a member, you could look at the digital version of the article now as it is available online (need to be a member of the Club to have access).

09-29-2023, 02:27 PM	#6
V8COOPMAN Senior Member Join Date: May 2010 Location: East Shore of LAKE HOUSTON Posts: 11,115	Re: Tubing nuts at carb Sponsored Links (Register now to hide all advertisements) . Here ya go! Third Gen and Mac VanPelt have these. *Weatherhead (Eaton) 6100x3* Coop . __________________ *Click Links Below* __ ▼ *'35-'36 W/8BA & MECHANICAL FAN* *T5 W/TORQUE TUBE*

09-29-2023, 02:36 PM	#7
1952henry Senior Member Join Date: May 2010 Location: North Dakota Posts: 1,621	Re: Tubing nuts at carb Fuel would be weatherhead 59x4. Napa has them. Believe Napa has the vacuum affair as well. At least some do. __________________ I dig coal, which provides motivation for EVs.

09-29-2023, 04:30 PM	#8
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,949	Re: Tubing nuts at carb Thanks all! We have napa on the island so I will try them first. This forum is a great community to be part of. __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)

10-01-2023, 07:21 AM	#9
Terry,OH Senior Member Join Date: May 2010 Posts: 4,752	Re: Tubing nuts at carb Over time the size of the vacuum tube changed in diameter and so did the vacuum fitting but all the years the original fittings were 1/2" hex head pre war. Today the original size is hard to find, they are now made with 7/16" hex head.

10-02-2023, 02:26 PM	#10
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,756	Re: Tubing nuts at carb There seems to be some mixing up of the vacuum nuts with the fuel inlet nuts. Vacuum nuts have a 3/8 unf thread and a 3/16" hole. Fuel inlet nuts have a 1/2" UNF thread and a 1/4" hole. Some are sold with a captive ferrule. These do not work as well as those that use a separate 1/4" ferrule, known in some areas as an olive. You can pull the captive ferrule out and use the nut with a separate ferrule, which works better. Mart.