Im looking for information on this carburetor. Its out of a stock 1956 272 Y block Chasis Cab F-250. The gas tank and lines have been cleaned and/or replaced to the fuel pump. I have installed a fuel filter in the flex line between the fuel pump and the had line that exits the frame rail. The truck has not been run for a long time. The gas tank was coated in a green slime and the pickup tube was closed with a tar like substance. I also noticed the huge throttle return spring which seems a little overkill. I just want to get the truck running, then go from there. Can someone tell me if this is an easy carburetor to rebuild? Im also wondering if I should remove the fuel pump and try to clean it up before I try and start it. The engine was running good before the truck got parked. It turns over good now.

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Hi Darrell,

Your picture is good of the fuel bowl where the Holley series numbers are. It appears that you have a Holley 2110 carburetor.

According to my book, the '56 and '57 Ford trucks were originally equipped with a Holley Model 2110-EE unit which had an automatic choke. Unlikely, but perhaps the carb you have still has an aluminum carb identification tag secured by one of the screws that holds the fuel bowl cover in place with the numbers on it. Another indicator that you do have the EE model would be if the carburetor base has four (4) holes in the base that secure it to the intake manifold.

It's likely your carburetor just needs a good cleaning and tune-up kit after sitting for so long. The gas evaporates, varnish is left and the accelerator pump piston is no longer functional due to age. These carburetors are easy to work on, IMO. -Unlike some, there are no special tools required to make necessary adjustments.

IF you're interested, there is a Holley factory repair manual available on the Internet from The Carburetor Doctor. It is 151 pages in size (!) and covers the Holley AA, 2100, and 2110 series carburetors. Cost is $9.95. While you can download the whole thing, you may wish to just print the section pertaining to your carburetor. In setting the page range for printing, be alert to un-numbered pages in the manual (like the cover page, or pages between sections) so that you get all that you want.

To locate the web site for this manual, Google 'The Carburetor Doctor' or www.carmd.com
On the Home page that opens, look in the left hand column under 'Service Information Catalogs and Pictures'
- Under 'Holley', Toggle '2100 (AA-1)'
- On the page that opens, notice the history that runs down the left side regarding this series of carburetors
- Next, look in the center section of the page for the heading 'Manuals'
- Toggle the manual for Model AA-1, 2100-DD, 2100-EE, and 2110; The web site will open to a downloadable Holley factory service manual covering your carburetor

The Holley service manual contains the following info. on the Holley 2110 (3 or 4-bolt flange carb.)

• Table of Contents
• Installation
• Description
• Operation
• Overhaul
• Disassembly
• Reassembly
• Installation
• Service Hints
• Trouble Shooting Chart

Hope this helps!

NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

I knew someone would be able to read that. Its not that clear to me, but I figured you guys who know this stuff would recoginze it by the # AND the photo. Its not the original. Im really surprised at the information you provided regarding these models having the electric choke. I have three 56's and every one of them have a "choke" cable in the dash board that pulls to open the choke on a manual choke carb. I have never seen one with an electric choke unless I changed it and did away with the choke cable. I checked, its a three bolt mount. I have the carb the guy said came with it and its also a three bolt. Unless the intake has been changed, Im assuming it came with a three bolt. No way of telling that I suppose. The one in the photo is a manual choke controlled by the cable mounted in the dash board. I will look for that book and maybe take a chance and go thru it. I have always wanted to try it, but never got around to it. Now would be the time, Thanks for your response.

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Hi Darrell,

NOT an electric choke. The predecessor to the electric choke. An 'automatic' choke has a choke 'stove' with a bimetallic spring inside it, with heat provided by exhaust gasses heating air in a steel tube running through the inside of the intake manifold in the early year y-blocks.

As the bimetallic spring is heated by the hot air, it increases in length and 'automatically' moves the carburetor choke linkage and connected choke plate. The choke 'stove' housing usually has a black phenolic plastic cover that can be rotated (adjusts spring position in relation to choke linkage) to adjust how quickly or slowly the choke opens as the spring is heated and expands.

Put another way, if the spring is positioned so that it must expand quite a bit before the choke plate starts to open, the air fuel mixture will be rich longer as the engine is started. If the spring is positioned so that with even a small amount of heat it begins to expand sufficiently to open the choke plate, the air fuel mixture will be rich for a very short period of initial engine operation.

My explanation is more involved than the operation of the mechanism! The bimetallic spring and the heated air to it are the key elements to the operation of the 'automatic' choke system.

My recollection is that the '54 Mercs were the first y-blocks to use an 'automatic' choke. '54 fords had the hand choke...

By the way, if you purchase a 'tune-up kit' for your carburetor, you'll likely find it has an installation sheet. Not as expensive as the downloaded Holley manual I mentioned, and possibly enough info for you to get the job done. Lacquer thinner is an adequate cleaning solvent for your carburetor parts. Commercial carburetor cleaner is better, but if you're only doing one carb, far too expensive to consider. Lacquer thinner as you likely know is extremely flammable... be careful where you use it and the cloths that might have it on them

Regards,

NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

Ok im with ya now........just took me awhile to catch up. Thanks!

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Darrell,

Follow "No Shortcuts" advice to be sure. These are good carbs and I myself have rebuilt a slew of them. The carb is just about identical to what Ford put on their 55 and 56 passenger cars. The main difference being the air horn up top and how the air cleaner sits on the air horn. "Most" of the internals are the same and will swap from carb to carb. Aftermarket suppliers are still making kits for these carbs and usually one kit will cover a "series" of carbs like this one that has small, different options.

Like you though, I have never seen a truck from 55 or 56 have an automatic choke. All of the original trucks I have dealt with had the small 3 bolt base and the choke cable to the dash, with factory bezels and knobs for the cabling. I believe that 57 was indeed the first year for the change over to the 4 bolt holley base that would be the same kind like what you see on 60's Mustangs, etc. Of course, different intake altogether.

By the way, Ted has an excellent article on his own website that explains how to modify the base of this particular carb so that you can run an updated (57 and up) Y block distributor, instead of the lazy loadamatic that is still most probably sitting in the block.

Gotta love these fat-fendered ford trucks!!!

Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

Daniel,

I will most definitely check out the article. I dont like the "hickup" in the older distributers. This particular truck is on the "hold" list behind two 1/2 tons that Im building. Short term is to get her up and running. Long term is build this F-250 long bed into a flat bed with smoke stacks and duallies just for something different. I watched a you tube video last night on rebuilding the 2100. I felt pretty intimidated watching the guy take it all apart. I have not watched the video on putting it back together. Lot of parts for such a little piece of equipment. I have a brother in law who is a retired mechanic for back up. Thanks for the response1

Darrell

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

This is to follow-up on what Dan said. My info source regarding the original carb for your application supposedly being a four bolt mounting flange 2110 was the web site I referred to, The Carburetor Doctor.

The only Ford Truck parts books I've got, cover the the years '57 to '63. Referencing the '57 carburetor section for the 272 engine, there are some 13 different carburetor identification numbers listed depending upon the application (F-100 to B/C/P & T-700!) -What I'm not aware of regarding different truck series! In the carburetor section that I'm looking at for the '57 272 engine, there is no indication of whether the carb bases are three bolt or four bolt. The Internet can be a great info source, but the info may be incomplete or incorrect.

I've only worked with the three bolt base '56 Holley 2100s / FoMoCo EBU6s myself. I like the '56 units because of the 1 1/16 venturis and the annular style venturi boosters.

As Dan suggested, I think that you'll find disassembly, cleaning, and tune-up kit installation easier than you might expect. For your purposes, I would not remove the choke plate or the throttle plates. Lacquer thinner, compressed air, a small paint brush (1/2 inch with natural bristles and without a plastic handle) a couple of sizes of straight blade screwdrivers, needle nose pliers, and the direction sheet that comes with the repair kit, and you'll likely have all that you need. -If I've left something out, at least you get the idea that you won't need fancy tools. There are much more difficult carbs to get in trouble with IMO.

NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

I dont beleive the trucks got the 4 bolt carbs until 58, at least the 57's I have seen including mine still had the 3 bolt with loadomatic, they must have had a slew of them left and decided to use them up in the trucks rather than waste them.

However, the 54-55-56 big trucks had a 2 barrel teapot thad had a 4 bolt flange but it was a smaller bolt pattern than the 57 and latter manifolds using the 2100 series carburators.

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?

Looking at the picture it looks like a 7RT model of the Holley 94 carb. If you look at the other side of the float bowl it may have 7RT stamped in. One of the "bigger" 94 carbs. I'm running 3 of them on my 57 Ford.

Dan      Kingman Az.      86409