Teardown Begins on our Barn find 340 Duster!

Gen 2 Garage

11 Mar 202425:44

EducationalLearning

32 Likes 10 Comments

TLDRIn this engaging video, the host embarks on a classic car restoration journey, focusing on a vintage Duster. The script details the meticulous process of disassembling and rebuilding the carburetor with new parts, converting the car from drum brakes to disc brakes, and installing Flowmaster mufflers for a throaty exhaust note. The team also discusses the technical aspects of carburetor tuning and shares their excitement about the car's potential as a street machine, all while providing a nostalgic look at 70s muscle cars.

Takeaways

🔧 The video script involves a restoration project of an old car, specifically focusing on the carburetor, brakes, and exhaust system.
🚗 The car in question is a 'Duster' that has been sitting for over 20 years and requires various repairs and upgrades.
🛠️ The carburetor is being rebuilt with new spacers and gaskets, addressing issues like accelerator pump diaphragms that have hardened over time.
🔨 The brakes are being converted from drum brakes to disc brakes, which is a significant upgrade for the vehicle's performance and safety.
💡 The car is also getting new mufflers to improve the sound of the exhaust, aiming for a quieter and less 'rowdy' driving experience.
🔄 The script mentions a problem with the idle mixture screw sticking out too far, which needs to be adjusted for proper carburetor function.
🛡️ The importance of using the correct gaskets for the carburetor rebuild is highlighted, including the use of cork gaskets for their reliability.
🔍 The process of checking and adjusting the float level in the carburetor is discussed, which is crucial for preventing fuel system issues.
🔧 The script describes the removal and replacement of various parts, such as the accelerator pump diaphragm, which had become too hard due to the car's long period of inactivity.
🛠️ The video also covers the removal of drum brakes and the installation of disc brakes, including the intricacies of dealing with springs and brake components.
📣 The sound of the new mufflers is tested and found to be impressive, with plans to adjust their position to avoid potential drone issues while driving.

Q & A

What is the main task being performed on the car in the video?
-The main task is to work on a Duster car, which includes replacing the carburetor with new spacer and gasket, converting the brakes from drum to disc, and installing new mufflers.
Why does the car need a new carburetor spacer and gasket?
-The car requires a new carburetor spacer and gasket because the existing ones are old and may not function properly, affecting the car's performance.
What is the issue with the accelerator pump diaphragms in the car?
-The accelerator pump diaphragms are hard as a rock due to the car sitting for over 20 years, which means they need to be replaced to ensure proper functioning.
Why are they converting the car from drum brakes to disc brakes?
-They are converting the car to disc brakes to improve the braking performance and modernize the vehicle's braking system.
What is the purpose of testing the mufflers?
-The purpose of testing the mufflers is to ensure they fit correctly and to evaluate how they will affect the sound of the car's exhaust, aiming for a quieter and more pleasant sound.
What is the problem with the idle mixture screw sticking out too far?
-If the idle mixture screw sticks out too far, it can cause improper fuel-air mixture settings, leading to poor engine performance or idling issues.
Why is the carburetor rebuild kit from Mark Day One Auto Parts being used?
-The rebuild kit is being used to replace worn or damaged parts in the carburetor, ensuring it functions correctly and efficiently.
What is the significance of the metering block in a carburetor?
-The metering block is significant as it determines how much fuel gets into the engine, affecting the car's performance and fuel efficiency.
How does the progressive linkage system work in a multi-carburetor setup?
-The progressive linkage system allows for the primary and secondary carburetors to open at different rates, improving driveability and acceleration performance.
What is the issue with the vacuum cap disintegrating?
-The vacuum cap disintegrating is a sign of age and wear, which can lead to vacuum leaks and affect the carburetor's performance, necessitating a replacement.
What is the purpose of the clear windows in the new float bowls?
-The clear windows allow for visual inspection of the float level, making it easier to adjust and ensure the correct fuel level is maintained in the carburetor.
Why is the accelerator pump diaphragm being replaced?
-The accelerator pump diaphragm is being replaced because it has become hard and inflexible over time, which can prevent it from functioning properly and delivering the correct amount of fuel to the engine when the throttle is pressed.
What is the reason for changing the wheel bearings and brakes on the car?
-The wheel bearings and brakes are being changed to improve the car's performance and safety, as well as to upgrade from drum brakes to disc brakes for better stopping power.
What is the significance of the 'gold box' in the context of the video?
-The 'gold box' refers to an MS5 ignition system, which is a desirable vintage part for Mopar enthusiasts who restore cars to their original racing condition.
What is the plan for the rear suspension of the Duster?
-The plan for the rear suspension includes installing new leaf springs, cow tracks, and lift bars to improve the car's handling and ride quality.
Why is the sound of the new mufflers being tested before fully committing to them?
-The sound is being tested to ensure it meets the desired tone and volume level, avoiding any potential annoyance or drone at certain driving speeds.
What is the final step mentioned for the car's exhaust system?
-The final step mentioned is to move the headers to a position that will prevent any unwanted drone while driving and ensure the sound is pleasing and not annoying.

Outlines

00:00

🔧 Car Restoration and Upgrades

This paragraph discusses a day's work on a vintage car, focusing on replacing a carburetor with a new spacer and gasket. The car, which had been sitting for over 20 years, also requires new accelerator pump diaphragms due to their hardened state. The team plans to convert the car from drum brakes to disc brakes and possibly replace the rear brakes as well. They also consider testing new mufflers to reduce the car's loud exhaust noise and discuss the importance of proper installation and the discovery of incorrect installations during the process.

05:02

🛠 Fine-Tuning the Carburetor and Understanding Its Components

The script delves into the intricacies of working with a carburetor, including the installation of a metering block and gaskets. It explains the role of the metering block in determining fuel flow and the importance of the main jets in fuel regulation. The discussion also covers the function of the accelerator pump and its importance for fuel delivery during throttle application. The team also touches on the tunability of a mechanical secondary carburetor and the impact of different cams on the rate of opening for both primary and secondary systems.

10:02

🔨 Replacing the Accelerator Pump and Muffler Installation

This section details the replacement of a non-flexible accelerator pump diaphragm and the subsequent testing of the car's sound with new mufflers. The team describes the process of installing the mufflers and using a decibel meter application on a smartphone to measure the sound level. They express satisfaction with the improved sound of the car after the muffler installation, noting a significant reduction in noise compared to the previous setup.

15:02

🔩 Disassembling Drum Brakes and Understanding Their Mechanics

The paragraph describes the process of removing drum brakes from a car, including the removal of the dust cap and the bearing. It explains the self-adjusting mechanism of the brake system and the importance of springs in maintaining tension against the backing plate. The team also discusses the function of brake pads and shoes, the operation of the brake cylinder, and the process of removing these components for maintenance or replacement.

20:05

🔌 Ignition System and Electrical Maintenance

The script shifts focus to the car's ignition system, identifying it as an MS5, also known as a 'gold box' among Mopar enthusiasts. It mentions the sale of an extra ignition part at a swap meet and the need for rewiring due to the spliced condition of the stock harness. The team also discusses the absence of electric water pumps in older cars and the use of mechanical water pumps driven by the engine instead.

25:05

🚗 Wrapping Up the Car Restoration Progress

The final paragraph summarizes the day's work, which includes the removal of drum brakes, disassembly and gasket replacement of the carburetor, and temporary installation of new mufflers to test their fit and sound. The team also mentions plans for upcoming work, such as the installation of 'cow tracks,' new brakes, and rear suspension components. They clarify that the car belongs to Jeff, with the team providing assistance in the restoration process. The paragraph concludes with a reflection on the day's achievements and a look forward to the next steps in the restoration.

Mindmap

Keywords

💡Carburetor

A carburetor is a device that mixes air and fuel for an internal combustion engine. In the video, the carburetor is a central component being worked on, as it had sat unused for over 20 years and required a rebuild with new spacers and gaskets. The script mentions taking apart the carburetor, replacing parts, and the importance of the metering block and jets in determining fuel flow to the engine.

💡Accelerator Pump Diaphragms

Accelerator pump diaphragms are components within a carburetor that control the amount of fuel delivered when the accelerator pedal is pressed. The script describes them as being 'hard as a rock' due to the car's long period of inactivity, indicating they need replacement to ensure proper fuel delivery and engine performance.

💡Disc Brakes Conversion

The term 'disc brakes conversion' refers to the process of changing a vehicle's braking system from drum brakes to disc brakes. In the script, the car originally had four-wheel drum brakes, and the plan was to convert it to have four-wheel disc brakes for improved stopping power and performance, which is a common upgrade in car restoration or modification projects.

💡Mufflers

Mufflers are parts of a vehicle's exhaust system designed to reduce the noise produced by the engine. The script discusses installing new mufflers to change the sound of the car, making it quieter and more pleasant to the ear. The mention of Flow Masters implies a brand known for producing performance mufflers that enhance the sound of a car's exhaust.

💡Transmission

A transmission is a component of a vehicle that allows changing of gear ratios. In the context of the video, the script mentions finding a 'fancy transmission' and a 'line kit,' indicating work on or an upgrade to the car's transmission system to improve its performance or functionality.

💡Wheelie

A wheelie is a maneuver where the front wheel of a vehicle lifts off the ground, typically performed during acceleration. The script mentions jets suitable for 'doing a wheelie all the way to the 8th Mile,' suggesting modifications or parts that can handle the unique demands of high-performance driving or drag racing.

💡Vacuum Cap

A vacuum cap is a component that seals the vacuum ports in a carburetor. The script describes a situation where a vacuum cap disintegrates, indicating a need for a new one to maintain proper vacuum levels and ensure the carburetor functions correctly.

💡Float Level

The float level in a carburetor refers to the height of the fuel within the float chamber. It is critical for correct fuel delivery. The script discusses checking and adjusting the float level to prevent issues such as fuel overflowing or a lean fuel mixture.

💡Drum Brakes

Drum brakes are a type of braking system where shoes press against a drum to slow the vehicle. The script details the process of removing drum brakes from the car, which is part of the upgrade to disc brakes. The mention of 'dust cap' and 'bearing' relates to the components of the drum brake system.

💡Spindle

A spindle is a part of a vehicle's suspension and steering system, to which the wheel hub is attached. The script mentions working down to the spindles, indicating a deep dive into the car's suspension system, possibly as part of the disc brake conversion or other suspension upgrades.

💡MSD Ignition

MSD stands for 'Mallory Sundstrand Detroit,' a brand known for performance ignition systems. The script refers to an 'MSD 5' which is likely a type of ignition system being used in the car. This suggests an upgrade for improved ignition performance, which is important for the engine's efficiency and power output.

Highlights

Carburetor rebuild with new spacer and gasket installation.

Plans to convert the car from drum brakes to disc brakes.

Mufflers testing and installation for improved sound.

Incorrect installation of a nut discovered during the carburetor removal.

Transmission line kit issues and the need for an Allen wrench.

Carburetor rebuild from Mark Day One Auto Parts with skinny jets.

Discussion on the impracticality of 25s on the front and opting for 195s.

Explanation of the metering block and its role in fuel flow.

Tuning the carburetor with different cams for primary and secondary openings.

Checking and adjusting the float level in the carburetor.

Accelerator pump diaphragm replacement due to硬化.

Wheel bearing removal process and the importance of protecting threads.

Brake shoe and spring removal for drum brake conversion.

The self-adjusting feature of the brake adjuster.

Drum brake disassembly and the upcoming disc brake installation.

Mufflers' sound test and comparison to Flow Masters on 5L Mustangs.

Drum brake sale offer for those interested in maintaining originality.

Upcoming tasks including rear suspension work and new brakes.

Clarification that the Duster belongs to Jeff, with the community assisting in restoration.

Transcripts

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Car Restoration Muscle Car Duster Carb Rebuild Brake Upgrade Vintage Vehicle DIY Mechanics Auto Parts Classic Automobile Restoration Project