Nozlrater(R) II Diesel Nozzle Tester - OTC Tools and Equipment

Specifications

The Nozlrater(R) II Diesel Nozzle Tester, model 4210, is manufactured by OTC Tools and Equipment. This testing unit features a large, dual-scale gauge with a maximum pressure reading of 5,000 PSI (350 bar), protected by a guard and equipped with an indicator needle to record peak pressure reached. It includes a 0.68-gallon (approximately 2.57 liters) reservoir with a usable capacity of about 0.628 gallons, containing a replaceable 2-micron filter to protect against impurities. The tester delivers a precise 1 cc of fuel per stroke, specifically designed to prevent flooding of mini-nozzles during testing. Weighing approximately 13 lbs. 15 oz. when empty, the unit is portable for field use and can also be bench-mounted for stable operation.

Key Features

• Precision Testing Capabilities: The Nozlrater(R) II allows technicians to accurately check for nozzle leakage, verify "pop-off" pressure, analyze spray patterns, and detect chatter.
• High-Pressure Measurement: Features a robust 5,000 PSI (350 bar) dual-scale gauge, offering clear pressure readings and a maximum indicator needle for comprehensive analysis.
• Integrated Fuel Filtration: Equipped with a 2-micron filter within its reservoir, ensuring that testing fluid remains clean and free of contaminants, thus protecting the injector nozzles and the tester itself.
• Controlled Fuel Delivery: Designed to deliver a consistent 1 cc of fuel per stroke, ensuring precise and controlled testing of mini-nozzles without overwhelming them.
• Durable and Portable Design: Constructed to be rugged yet lightweight, enabling easy transport for mobile service while also offering bench-mounting options for secure workshop use.
• Broad Compatibility: Accommodates a wide range of diesel injector nozzles and includes a fuel line with two fittings for compatibility with various diesel-powered vehicles, including GM, Audi, Nissan/Datsun, Mercedes Benz, Toyota, and Rabbit diesels. It is not designed for Cummins or Detroit injectors.

Applications

The Nozlrater(R) II Diesel Nozzle Tester is an essential diagnostic tool for evaluating the performance of diesel fuel injectors. It is widely used in automotive workshops and fleet maintenance operations for diagnosing a range of diesel engine issues. Technicians utilize this tester to perform critical assessments, such as checking for internal leakage, verifying the correct "pop-off" or opening pressure, analyzing the fuel spray pattern for proper atomization, and identifying nozzle chatter. This tool is crucial for preventative maintenance, helping to identify injector performance degradation before it leads to more severe engine problems. Its included fittings make it suitable for testing mini-nozzles found in many diesel-powered cars and light trucks, including specific models from GM, Audi, Nissan/Datsun, Mercedes Benz, Toyota, and VW Rabbit.

Benefits

• Accurate Engine Diagnostics: Provides precise evaluation of diesel injector health, allowing for accurate identification of issues like sticking needles, clogged nozzles, or failing solenoids.
• Optimized Engine Performance: Ensures fuel injectors deliver the correct pressure and spray pattern, leading to improved combustion efficiency, better throttle response, and smoother engine operation.
• Enhanced Fuel Economy: Proper injector function, verified through regular testing, results in a cleaner and more complete fuel burn, significantly improving fuel efficiency and reducing consumption.
• Reduced Emissions: By minimizing incomplete combustion, the tester helps ensure that diesel engines produce fewer harmful pollutants, supporting compliance with environmental regulations.
• Extended Engine and Injector Lifespan: Early detection and resolution of injector problems prevent strain on other engine components, potentially extending the overall life of the engine and its fuel system.
• Cost-Effective Maintenance: Proactive testing and repair of injectors can prevent minor issues from escalating into major engine failures, thereby reducing costly repairs and vehicle downtime.