Menu

Shop

Garage

Cart

Account

Products to Compare (max of 3)
X
Compare These Parts

Rebuilding a 4160 Holley Carburetor

8/24/2020
Add Article To List

Most people look at a carburetor and are intimidated by it. They look at all the screws and linkage wondering what all of this could possibly do. Then when they have issues with their carburetor not working properly, a lot of car hobbyists just remove the carburetor and take it to a shop to have it rebuilt. STOP you don’t have to do that.

Rebuilding a carburetor or renewing it is not as hard or intimidating as it looks. The key is to take small steps and work on one thing at a time. By using a rebuild kit such as the Holley 37-754 Model 4160 4 Barrel, 750 CFM Rebuild Kit and following the instructions included in the kit, along with this article, we can help take the worry out of it.

First, you will want to start with a clean work surface and plenty of space. Unbox your kit and lay everything out on your work surface. Next, spray your carburetor off with carburetor cleaner or in a parts washer to loosen up and remove and dirt and debris on the outside of your carburetor. This will prevent any dirt from entering your carb when you are reassembling it.

Begin disassembling your carburetor, following the numbered diagram included with P#42737754. Start with number one and work through all the numbers cleaning each part as your remove it.

While you are disassembling the carburetor try to keep it facing the same direction throughout the entire process and make sure to place parts that you remove from the left side of the carburetor set to the left side of you and parts from the right side put to the right side of you. This will help during reassembly to not interchange parts from side to side on accident.

Additionally, while removing the linkage and such, as you remove a pin or clip, reinstall it right away to prevent losing it or forgetting which pin or clip went in that location. The kit does include new pins or clips as needed which you can swap out for the old during reassembly. Finally, before removing and adjustable screw such as an idle screw turn it in until it seats, counting your turns as you go. When you reinstall the screw just back it off the same amount of turns that you previously counted, by doing this it will give you a good starting point to tune your carburetor from.

This picture shows proper float adjustment.

Once everything has been thoroughly cleaned and gone through begin reassembling your carburetor in the reverse steps from which you disassembled it, using the diagram as a guide. After reassembling your carburetor simply reinstall on your engine and fire it up. With a little bit of tuning, you’ll have finished this job that may have seemed intimidating when you began.

Products Featured in this Article

Related Articles

Electric Fuel Pumps vs Mechanical Fuel Pumps: What Is Best For Your Application
by Mark Houlahan - Posted in Tech
5/3/2022
Learn how to best choose between an electric or mechanical fuel pump for your project vehicle. We help you you understand the differences in order to properly design a performance fuel system with our buyer's guide.
'57 Bel Air Fuel Pump
by Jeff Karls - Posted in Tech
2/12/2018
The process of changing out a mechanical fuel pump in a 1957 Bel Air and some helpful tips while doing so.
Dual Plane vs Single Plane Intake Manifolds Explained
by Mark Houlahan - Posted in Tech
5/6/2022
Dual plane or single plane intake manifold? Which is the best for your project vehicle's engine? Learn the differences in our buyer's guide.
Reusable Car Air Filters vs Disposable
by Speedway Tech Team - Posted in Tech
9/13/2016
Learn the cost differences between a reusable and disposable air filter for your car with our guide. Learn how to clean a reusable car air filter as well.
How To Set Up Multiple Carburetors on a Vintage Engine
by Speedway Tech Team - Posted in Tech
10/13/2016
There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.
Winterizing Your Fuel System
by Frank Galusha - Posted in Tech
1/30/2018
The process on how to effectively winterize your fuel system in open wheel racing. This includes step by step instructions and recommended parts to use for your fuel system.
Fuel System Overview
by Speedway Tech Team - Posted in Tech
9/13/2016
Thinking about rebuilding your fuel system but you're not sure what it entails? Click here for a comprehensive article on what to expect!
Red Ram Revival Part Two
by Tim Matthews - Posted in Tech
7/12/2016
Speedway Motors employee Tim M. Decided to take us along as he revives his 241 "Baby Hemi". In this installment, Tim helps his project breathe a bit better with and Edmunds 2x2 intake, topped with a pair of Speedway Motors' own "9 Super 7" carbs.
Selecting An Electric Fuel Pump Over Mechanical
by Matthew McClure - Posted in Tech
3/6/2018
For most, an electric fuel pump can be a choice of form over function, but for others, it may be the best option. In this article, you will learn the advantages of using an electric fuel pump and how to install it in your car.
Fuel Expansion Issues
by John Wulbern - Posted in Tech
10/7/2016
In this Tech Tip, John offers up a couple solutions to a somewhat common problem of fuel expansion on the older vehicles.
Error
X
Note
X
Ok