AUTOOL Automotive Smoke Machine Lead Detector SDT 100 User Manual

Introduction

The AUTOOL Automotive Smoke Machine Lead Detector SDT 100 is a diagnostic tool designed to quickly and accurately detect leaks in various automotive piping systems. This device utilizes smoke generation to visually identify leaks that may cause performance issues, increased fuel consumption, or engine malfunctions. It features a built-in air pump for convenience and smart protection mechanisms for safe operation.

Product Overview and Components

The AUTOOL SDT 100 comes with a comprehensive set of accessories to facilitate various leak detection tasks. Below is an overview of the main unit and included components.

Figure 1: AUTOOL SDT 100 Smoke Leak Detector and included accessories. The main unit is yellow and black, accompanied by various hoses, adapters, power cables, and a fluid bottle.

What's in the Box:

• AUTOOL SDT 100 Smoke Leak Detector Unit
• Power Cable with Battery Clamps (DC 12V)
• Smoke Output Hose
• Various Adapters and Plugs for different pipe sizes
• Fluid Refill Bottle
• User Manual

Specifications

Figure 2: Detailed product specifications and dimensions of the AUTOOL SDT 100 unit.

Setup Instructions

1. Fill with Test Oil: Unscrew the oil filler cap on the top of the unit. Using the provided refill bottle, add 10ml-20ml of test oil (Johnson's baby oil, pink label, is recommended and not included). Do not overfill.
   

   Figure 3: Adding test oil to the smoke leak detector unit.
2. Connect Power: Connect the power cable with battery clamps to the DC 12V power input on the unit. Attach the red clamp to the positive (+) terminal of your vehicle's 12V battery and the black clamp to the negative (-) terminal. Ensure a secure connection.
   

   Figure 4: Connecting the power clamps to the vehicle's 12V battery.

3. Attach Smoke Output Hose: Connect one end of the smoke output hose to the "SMOKE OUTPUT" port on the unit.
4. Install Hanger: Screw the provided hanger into the designated port on the top of the unit for convenient suspension under the vehicle's hood.

Operating Instructions

1. Prepare Vehicle System: Disconnect the intake pipe of the car or the system you intend to test. Use appropriate adapters to seal the system and connect the smoke output hose.
2. Power On: Flip the "SMOKE SWITCH" to the "ON" position. The "POWER" indicator light will illuminate.
3. Initiate Smoke Generation: The unit will begin generating smoke. Allow approximately 2 minutes for the smoke to fully fill the pipe system (for small vehicles; larger vehicles may take longer).
4. Locate Leaks: Visually inspect the system for any escaping smoke, which indicates a leak point. Using a flashlight can enhance visibility of the smoke.
   

   Figure 5: Smoke escaping from a leak point in an automotive system.
5. Turn Off: Once testing is complete, flip the "SMOKE SWITCH" to the "OFF" position and disconnect the power.

EVAP System Detection

For American cars produced after 1996, EVAP service ports are typically located in the engine compartment. Some special models may have them elsewhere.

1. Locate the EVAP service port and open its plastic cover.
2. Use a spool wrench to remove the check valve clockwise.
3. Install the appropriate EVAP service port adapter.
4. Introduce smoke from the smoke output hose into the EVAP leak detection system through the adapter.

Wide Testing Range and Leakage Examples

The AUTOOL SDT 100 is capable of performing smoke tests on a variety of automotive systems, including:

• EVAP Systems
• Intake Systems
• Cooling / EGR / Exhaust Systems
• Crankcase Systems
• Engine Airtightness
• Vacuum Leaks
• Low Pressure Turbo Leaks

It is applicable for cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks, and speedboats.

Figure 6: Visual examples of different automotive systems where leaks can be detected using the smoke machine.

Common Leakage Issues:

• Vacuum Hose Rupture: Can lead to a rich mixture, increased idle speed, difficulty starting when hot, engine surging during acceleration, significantly increased fuel consumption, and black smoke from the exhaust pipe.
• Blocking: May cause idle speed drift and frequent stalling at idle.
• Air Leakage in Vacuum Tube: Results in weak engine performance.

Smart Protection Features

The smoke machine is equipped with overheat and freeze protection. If the device operates for an extended period and the temperature exceeds 75°C, it will enter a self-protection state and intelligently power off. The indicator light will turn off, and smoke generation will stop until the temperature returns to a safe level. The built-in air pump can be used to cool the equipment. Do not fill oil while the unit is working.

Figure 7: Visual representation of the overheat (75°C) and low temperature (-20°C) protection features.

Maintenance

• Regularly check the test oil level and refill as needed.
• Ensure all connections are secure before and during operation.
• Store the device in a cool, dry place when not in use.
• Do not fill oil while the device is operating.

Troubleshooting

• No Smoke Output:
  • Check if the power connections are secure and correct (positive to positive, negative to negative).
  • Ensure the "SMOKE SWITCH" is in the "ON" position.
  • Verify that there is sufficient test oil in the unit.
  • Allow adequate warm-up time (approx. 2 minutes).
• Device Overheating: The smart protection system will automatically shut down the unit. Allow it to cool down naturally or use the built-in air pump to assist cooling.
• Weak Smoke Output: Check for proper sealing of the system being tested. Ensure the smoke output hose is securely connected.

Official Product Videos

Warranty and Support

AUTOOL offers a Three Years Warranty and Lifelong Maintenance for the SDT 100 Smoke Leak Detector. For damages caused by non-human factors, AUTOOL promises to resend parts for free within 3 years.

For any inquiries or support needs, please contact AUTOOL customer service. They aim to reply as soon as possible within 24 hours.