Intake manifold thing
- Thread starter tommyleea
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Daves55Sedan
Well-known member
You've got a couple of problems there. You have the 4-bbl teapot and you are using it with a 2-bbl distributor. The proper distributor for use with that carb has a dual vacuum advance which I believe should be connected to that open port in the carb right above where the vacuum port is on the manifold.
Look at your choke housing and you can easily see at the bottom on the left hand side of the choke is the port on the carb for the heat riser tube which is missing altogether. There should be a copper tube with a fabric covering running from the choke heat riser port to the manifold heat riser passage.
Look at your choke housing and you can easily see at the bottom on the left hand side of the choke is the port on the carb for the heat riser tube which is missing altogether. There should be a copper tube with a fabric covering running from the choke heat riser port to the manifold heat riser passage.
I realize I have many issues with my setup. I just rebuilt the carb, so everything is not connected yet. My vacuum advance line is not connected yet, and yes I know my hot air choke isn't connected. I don't know where to connect it to at this point in time. I don't think the part my post is about would be a hot air source since it is in the intake manifold, but I could be wrong. So, what is that thing in my intake manifold for? Just a manifold vacuum port? Thanks for all the inputs.
dmsfrr
Well-known member
It is a hot air fitting for the choke. It connects to the choke fitting marked with an arrow in the first picture below.
The parts of a repair kit are shown in the second photo.
The center passage of the intake manifold is an exhaust crossover to warm the intake and carb in winter weather.
There is a small stainless steel tube inside the crossover that air for the choke is drawn thru. photo three
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LOOK AT THE PICTURES that dmsfrr sent you. Again, LOOK AT THEM. you will see that the curly one is swedged on one end. It will slide into the fitting you have blocked with a screw. There is no need to block this thing. There is nothing going thru it until you connect it to the carb. The carb then supplies the necessary vacuum to pull the air thru it. The possible reason it is plugged is the straight tube runs thru the intake to the left side, where it is connected to the little round "filter", is rusted/burned thru, which is a common thing. If it is rusted thru, exhaust will come out of the tube with the screw removed. You will have to pull the intake, and remove the tube, and tap in a new one, then reassemble the whole thing and viola, the whole thing will make sense. This isn't rocket science, in fact, it is not even hard, it just takes a little time.
Copy that .. Thanks
Thanks..I will remove the bolt and see what happens...
dmsfrr
Well-known member
I think the hot air tube thru the exhaust crossover was discontinued after '57 due to the burn-thru problems.
Larger hex shaped re-fit kits were created and installed. photo 1 is from an original un-restored '57 T-Bird.
Ford may have had the choke hot air fitting for most(?) '56 / '57+ full-sized cars and trucks on the right side exhaust manifold. photo 2
The choke heat tube thru the intake manifold may have been used most often in the '56 / '57 T-Birds, to not interfere with the view of the optional cast aluminum valve covers???
In '54 and '55 the choke thermostat was mounted on the intake manifold exhaust crossover. photo 3
However, I'm not familiar with the 2bbl carb versions.
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paul2748
Well-known member
The 56 Birds had fittings on both ends of the tube that ran through the intake. One was connected to the choke and the other, through a metal tube, run into the carb air horn. No round thing on the drivers side. Is the sedan different?
55's had the choke mounted on the intake. It looks like the poster has a 56 setup, unless the 55 sedan were different than the Birds
55's had the choke mounted on the intake. It looks like the poster has a 56 setup, unless the 55 sedan were different than the Birds
The engine is in a 55 F100, but I have narrowed the engine down to a 272 out of a car, so it could be a 56.
Update..I removed the fitting from the intake. The fitting looks good. The pipe that went into the fitting was broken off. The PO was probably a rocket scientist like me, and thought there would be a vacuum leak and plugged it up. I drilled out the old pipe, and installed a new pipe with a fitting connected to the choke. Can't wait to check it out...Thanks to all..
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