I've put off learning to rebuild a carburator for 50 years. Your video makes it look doable so thanks and I'm off to give it a try on my 54 Mustang!!!!

Great video. I'm running a 1.12 4100 on my Galaxie, but I converted mine to a manual choke. Always thought those to be the very best four barrel carburetors available.

Thanks Mike for the best quality carb kits you sell for the 4100 i bought the PK107 kit with the floats and secondary diaphram and your video made it very easy to build.

I just happened to be rebuilding a 4100 this afternoon. Thanks for the video.

thanks mike!! i was with u most every step of the way

Good Video My 4100 has a red plastic insert that goes in the accelerator pump housing I didn't notice that in your video except it was sitting with your parts

Great video, and I just ordered the full kit for my '65 Mustang's 4100. I downloaded the manuals and have read through a few tuning guides, but I was curious if you've posted a 4100 tuning/adjustment video. Some of the original instructions are a bit strange, especially setting the choke valve.

jim,i didnt see the secondary check ball installed.do all 4100;s have one?

Did you ever get a chance to make a adjustment video for the 4100?

Hi I'm in the process of rebuilding my autolite 4100. But I can't seam to stop the carb from getting dirty amd dull. Any rips on how to treat them that keeps them clean? Thanks by the way for your nice videos!

My autolite has brass plates in the top that seems to fit on the inside of the carb. Can you tell me what it does and where it goes? I did not see it on your carb.

Hay Mike, I took in a 4100 to rebuild, I noticed the vacuum diaphragm for the secondary's had a tiny ball fall out, I did not see you install one in that carb, I'm guessing it went into the vacuum port of the carb I'm building, It came off a 65 GT Mustang, Is that tiny ball important?

Hi - I was being a ham-fisted idiot and managed to break off the little brass tube that sits in the cover under the choke. I saw that your hardware kit has this tube. How do you install it? I would think it would need to be a slight interference fit so it doesn't fall out? Thanks.

Your kit worked great but when engine is cold I have to let the fuel pump fill up the carb before it will crank up. Once it's running it cranks immediately but shut it off for 4 hours and the gas seems to disappear. I have the 1" water cooled spacer under the carb. '64 Galaxy 390 stock engine. Any suggestions?

@beeepizzle

Жыл бұрын

Inspect your floats and the attached pin. A secondary purpose is supposed to seal, to prevent fuel from draining out of the fuel bowl(s) back down through the filter and line into the fuel pump and tank…gravity… If a float is compromised, it might be filled with fuel and not actually floated which will push the pin down for sealing.

What is the purpose of the "secondary" that you reassemble from shortly before 1:05:00 to shortly after that? It has the rubber diaphragm, spring, cover, etc.

@idouglas1304

10 жыл бұрын

***** Does the diaphragm actuate the secondary throttle plates mechanically via some kind of linkage, or does it control air pressure inside the chamber where the plates are?

hi! on your site I can't find the technical info on how to test my jets. Can you reply and post the link? Thanks!

@jewllake

5 жыл бұрын

@@MikesCarburetor Thanks. My 4100 has the plastic arm for the secondary. If that plastic ever breaks - can i use the metal arm and rod from a spare parts 4100 carb I have? I have a new diaphragm for both plastic and metal arms.

@gregorymalchuk272

4 жыл бұрын

@@MikesCarburetor Is there any particular mistake you could make rebuilding the autolite 4100 that would cause the engine to chug, belch black smoke at idle, and run rich over the entire RPM range? That is the situation I am facing.

Hi, I finished rebuilding my 4100 on my 65 tbird but when I installed it back and gave it a try, fuel was squirting on each side of my accelerator pump, could a bad level (where do I find the exact depth by the way?) on the floats be responsible from that leak? It seemed to me screws were tight enough, or maybe a bad gasket? Thanks

@MikesCarburetor

9 ай бұрын

If it is coming out of the pump cover then the cover is warped from over tightening. Remove it and run a flat file over it. You will find the high spots will be at the screw holes. There is no accelerator pump level measurement.

@MAKH13

9 ай бұрын

@@MikesCarburetor thank you, I meant primary float level. Ok so I thought it was not tightened enough, it was definitely a Bad Idea. 😕 that was my first rebuild though 😁

@MAKH13

9 ай бұрын

@@MikesCarburetor you were right it's warped, I've just manualy wetsanded it on a flat surface, we'll see when reinstalled. Thanks a lot from a newbie in mechanics! 👍

@MikesCarburetor

8 ай бұрын

You can get float levels here: www.carburetor-parts.com/4100-float-circuit@@MAKH13

@MikesCarburetor

8 ай бұрын

Good Job@@MAKH13

Why is this video so small?

Why does this float bowl gasket have the three holes forming a triangle over the primary floats? My other 4100 gaskets did not. Thanks!

@jewllake

5 жыл бұрын

@@MikesCarburetor thanks. About how many inch lbs should the screws to the top cover be torqued to? (4100 top air horn cover/float bowl cover)

@jewllake

5 жыл бұрын

@@MikesCarburetor thanks! I guess I'm leaving them to loose. I have them about as tight as the screws holding a plastic light switch face plate to the wall.