The Ford Barn

dnc1 · 03-22-2017, 04:43 PM

What holds the choke tube inlet and outlet tubes into the manifold for the 4 barrel teapot carb? My intake part # ECZ9425A has threaded hole where the elbows go in and the elbows are not threaded.

scicala · 03-22-2017, 06:01 PM

There is a tube that goes across inside the bottom of the intake manifold (exhaust crossover). Then the brass elbows press into that tube. The manifold was threaded by someone along the line. You can't just put the brass elbows into the intake without the tube, or the exhaust gasses will go into the choke and destroy it. The heat tubes are available if you don't have on in the manifold now.

Sal

dmsfrr · 03-22-2017, 08:16 PM

Part #9890, stainless steel, '56 & '57, 7.62" long.
If the now threaded holes are too large for the heat tube to fit inside of without leaking...
you may want to plug the threaded holes and go with an electric (or manual) choke cover.
Sorry, I don't have the diameter of the tube or original size of the holes.
.

Daves55Sedan · 03-22-2017, 10:52 PM

Well I don't know about the 4-bbl manifolds (guess I'm the only one left around here that still runs that old Ford EBU 2-bbl carb with the load-o-matic distributor). Anyway, on the '56 2-bbl manifold, if you turn the manifold upside down you would see the flared end of the copper tube recessed in the bore in the bottom of the manifold. That tube passes all the way thru the hollow heat riser passage and extends thru the top. It was a one piece tube, no fittings. The top of the tube connected directly to the bottom of the choke housing. Apparently, the tube is installed by pressing it thru from the bottom. Once the flared end at the bottom is all the way down, you turn it over and slide the cloth insulating jacket down over the tube and put the choke connector fitting on top. It was required to bend the copper tube over a little bit to get it to mate with the bottom of the choke housing, but that was the last thing that was needed to complete the installation.

Alaska Jim · 03-23-2017, 01:17 AM

If It was mine , I would plug the holes and put an electric. choke on it, and never look back. If you want it to be 100% original, that is a different matter. my .02

Kahuna · 03-23-2017, 10:35 AM

Sponsored Links (Register now to hide all advertisements)

X 2 Alaska Jim

WestCoast · 03-23-2017, 07:39 PM

go with an electric choke, wire the choke wire to the ignition so that wire is powered as long as the ignition switch is on

willowbilly3 · 03-23-2017, 08:17 PM

The Holley style electric chokes seem really fast, too fast. In the 70s, Ford hooked them to the S terminal from the alternator. This was less than battery voltage and didn't start to open until the engine was running, about 8-9 volts IIRC.
For what ever that is worth.

Alaska Jim · 03-24-2017, 12:57 AM

willowbilly is correct. That is the best way wire the choke, that way if for some reason the eng. does not start right away , and the key is on the choke coil does not heat up. if the coil heats up before the eng. is running, you have defeated your reason for having a choke, because it will open to soon.

dnc1 · 03-28-2017, 09:30 AM

Thanks for all your help. I will probably plug the holes and convert to electric choke.

03-22-2017, 04:43 PM	#1
dnc1 Junior Member Join Date: Feb 2015 Posts: 7	56 292 choke heat tube What holds the choke tube inlet and outlet tubes into the manifold for the 4 barrel teapot carb? My intake part # ECZ9425A has threaded hole where the elbows go in and the elbows are not threaded.

03-22-2017, 06:01 PM	#2
scicala Senior Member Join Date: Jun 2010 Location: Detroit suburb, MI Posts: 3,801	Re: 56 292 choke heat tube There is a tube that goes across inside the bottom of the intake manifold (exhaust crossover). Then the brass elbows press into that tube. The manifold was threaded by someone along the line. You can't just put the brass elbows into the intake without the tube, or the exhaust gasses will go into the choke and destroy it. The heat tubes are available if you don't have on in the manifold now. Sal

03-22-2017, 10:52 PM	#4
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: 56 292 choke heat tube Well I don't know about the 4-bbl manifolds (guess I'm the only one left around here that still runs that old Ford EBU 2-bbl carb with the load-o-matic distributor). Anyway, on the '56 2-bbl manifold, if you turn the manifold upside down you would see the flared end of the copper tube recessed in the bore in the bottom of the manifold. That tube passes all the way thru the hollow heat riser passage and extends thru the top. It was a one piece tube, no fittings. The top of the tube connected directly to the bottom of the choke housing. Apparently, the tube is installed by pressing it thru from the bottom. Once the flared end at the bottom is all the way down, you turn it over and slide the cloth insulating jacket down over the tube and put the choke connector fitting on top. It was required to bend the copper tube over a little bit to get it to mate with the bottom of the choke housing, but that was the last thing that was needed to complete the installation.

03-23-2017, 01:17 AM	#5
Alaska Jim Senior Member Join Date: May 2010 Location: Palmer, Alaska Posts: 1,594	Re: 56 292 choke heat tube If It was mine , I would plug the holes and put an electric. choke on it, and never look back. If you want it to be 100% original, that is a different matter. my .02

03-23-2017, 10:35 AM	#6
Kahuna Senior Member Join Date: May 2010 Location: NorCal Posts: 2,617	Re: 56 292 choke heat tube Sponsored Links (Register now to hide all advertisements) X 2 Alaska Jim

03-23-2017, 07:39 PM	#7
WestCoast Senior Member Join Date: Sep 2014 Location: oroville calif Posts: 892	Re: 56 292 choke heat tube go with an electric choke, wire the choke wire to the ignition so that wire is powered as long as the ignition switch is on

03-23-2017, 08:17 PM	#8
willowbilly3 Senior Member Join Date: Sep 2011 Location: Black Hills, SD Posts: 577	Re: 56 292 choke heat tube The Holley style electric chokes seem really fast, too fast. In the 70s, Ford hooked them to the S terminal from the alternator. This was less than battery voltage and didn't start to open until the engine was running, about 8-9 volts IIRC. For what ever that is worth.

03-24-2017, 12:57 AM	#9
Alaska Jim Senior Member Join Date: May 2010 Location: Palmer, Alaska Posts: 1,594	Re: 56 292 choke heat tube willowbilly is correct. That is the best way wire the choke, that way if for some reason the eng. does not start right away , and the key is on the choke coil does not heat up. if the coil heats up before the eng. is running, you have defeated your reason for having a choke, because it will open to soon.

03-28-2017, 09:30 AM	#10
dnc1 Junior Member Join Date: Feb 2015 Posts: 7	Re: 56 292 choke heat tube Thanks for all your help. I will probably plug the holes and convert to electric choke.