Hey Mr. Bill White,
This is a bit off topic as I'm not talking about a Ford, but I was in the process of rebuilding a Holley 1920 Carburetor for Lorrie Van Haul, a 1967 Dodge P200 Mail Van with a 225 Slant-Six Engine.
I had the carburetor apart, and put the body into Berryman's ChemDip.
It was in the ChemDip for a week, and when I took it out, the cross tubes in the throat of the carburetor were eaten away! The body seems to be alright, but the cross tubes in the throat are quite delicate, and the bottom of the tubes have disintegrated.
The ironic thing is that I got the rebuild kit, and when I took the carburetor apart, I found that there was nothing wrong with it. The accelerator pump diaphragms were fine. It would have worked the way it was. But I just couldn't leave well enough along.
Like Grandpa said: "If it ain't broke, don't fix it!"
Anyway, is the little cross piece in the throat replaceable? Or do I need a new carburetor?
And if it answer is YES to the disintegrated part, what is what I need called?
And if the answer to the new carburetor is YES, is there another brand and model that would work, or am I stuck with a Holley?
I'd like to not have to modify the throttle linkage, and the choke set-up.
Hope you all are well.
JC
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Hey Mr. White,
This is a JPG which is looking UP the venturi of a Holley 1920 Carburetor at the Fuel Distribution device in the throat.
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All of the dark areas are where the Berryman's ChemDip ate away the horizontal tube.
Can this carburetor be salvaged?
If so HOW?
Could I cut off the horizontal tube (the one that's eaten away) at about a 45 degree angle, and still have it work?
I'm not looking to have the 225 Slant-Six be anything but a go to the store vehicle while I work on Ms. American 3.14159 (a 1964 Ford Galaxie 500, Four-Door, Hard-Top, Fast-Back, Police Interceptor).
I'd hate to have to trash can this poor little old thing through no fault of its own.
Hope you are well.
JC
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Here is a post to show the effort being made to save Lorrie Van Haul's poor little old Holley 1920 carburetor.
Let me start by saying that everything that is wrong with the poor little old thing is MY fault, and no one else's. What actually happened was, in the final analysis, mine own doing, and mine alone.
What I'm trying to pull off MAY or MAY NOT work.
If it does work, then I can feel the satisfaction of having mended something that I damaged.
It is doesn't work, then I'm going to have to get a new carburetor for Lorrie.
BUT, I'd have to do that anyway, even if I hadn't decided to try to "fix" the poor little old thing. So what have I got to lose?
So here is the situation, and I'm going to do this as if NO ONE here has even heard of the situation in the first place.
I have a 1967 Dodge P200 Mail Van named Lorrie Van Haul, which has a 225 Slant-Six engine.
http://msamericanpi.bravehost.com/dodge.htm
She has been sitting for twelve years, and I have finally decided to awaken her from her coma.
In the process, I've decided to rebuild the Holley 1920 1V carburetor.
http://msamericanpi.bravehost.com/1920carb.htm
And to that end I have obtained the proper re-build kit. Disassembled the unit.
Put it into a can of Berryman's ChemDip, and was going to let it sit for two weeks (per a carburetor expert's advice). BUT, I got eager to get started on it after letting it sit for just one week, and so I pulled it out of the ChemDip, to find that the Fuel Tubes in the venturi had disintegrated!
Well, being one who is not easily deterred, I sought opinions, and got a full range of recommendations : All the way from "Get a NEW one.", to "I'm not sure it can be saved.", to "Yes, it can be saved."
And taking the tack that I have nothing to lose by giving "It can be saved." a try, here is what I'm done so far.
First off, that Fuel Tube arrangement in the Venturi is one that no one that I've talked to has ever seen before. And it came to be called (during the discussion) the Greek Orthodox Crucifix Shaped Tonsil! (hereinafter referred to as GOCST)
As the above JPGs show, it DOES seem to have THAT appearance.
Anyway, I decided to give it a tonsillectomy! And here are a series of JPGs showing THAT procedure.
This first one is looking UP the venturi from the bottom of the carburetor where one side of the GOCST was removed by griding it away with a Craftsman RotoTool with a long spindled abrasive stone tip.
Alright, now we have only the Main Fuel Tube left, and it needs some finish work. So with a small file, reaching in from the BOTTOM of the unit, the holes in the Main Fuel Tube were dressed down.
Here are the JPGs of that process. First one side:
Alright, now as you may or may not know, the fuel from the Fuel Tube is pulled into the air stream by a vacuum/low-pressure area caused by the opening in the fuel tube facing away from the direction of the air flow.
Well, the holes in the Main Fuel Tube ARE "kind" of facing away from the incoming air, but not enough to suit me. So I got to trying to figure out a way to make it to where the low-pressure vacuum would be more pronounced, and came up with an idea to "shroud" the holes in the Main Inlet Tube in a more POSITIVE manner. And I came up with the following idea which has come to be called: "The Micro Tonsil".
I took a page of "business card" paper stock and drew out a shape that when bent, folded, and crimped would fit over the Main Fuel Tube and be held in place with a wrapping of fine copper wire to make sure that it wouldn't come loose and get sucked into the engine.
Here is that piece of business card stock shape PRIOR to being bent, and folded:
And here are a couple of different view of it AFTER being bent and folded. It is being held in a pair of tweezers, so to give you some idea of how big this piece is, the long piece in the JPG is 1" in length.
And here is the view of the installed Micro-Tonsil from the BOTTOM of the carburetor looking UP the venturi. BTW, you can get a pretty good idea of how big the Micro-Tonsil is by comparing it to my index and middle finger which are holding the Micro-Tonsil in place for the photograph.
As you can see, the "bell" of the "shroud" of the Micro-Tonsil is completely covering the area just below the holes in the Main Fuel Tube, which HOPEFULLY is going to create a low-pressure/vacuum area that is facing AWAY from the direction of the air flow. And will, as mentioned above promote the suction necessary to get the fuel to come out of the fuel tube, and into the flow of the air stream in the the venturi of the carburetor.
I've made another one of these Micro-Tonsils, which has a couple of improvements but is not yet finished. Will post JPGs of it when it is done which should be later on this morning.
When the shape is FINALLY determined, it will then be cut out of aluminum stock which will be obtained from the lid of a can of Colon Cleanse (Psyllium Husk), and installed in the venturi with the aforementioned fine copper wire.
Anyway, this is what I'm doing to try to redeem myself for having damaged the poor little old thing, and hopefully it will work, and Lorrie's Holley 1920 carburetor won't have to become a paper weight, and I won't have to spend $200.00+ for a NEW unit.
Thanks for reading this. Your comments, and opinions are solicited. Don't be shy. Say what you think.
Will keep you updated on the progress.
Hope you all are well.
JC
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HAVE A NICE DAY!!!!