DAYUAN 6 Cylinder Diesel Injector Flow Meter Diagnostic Set | Common Rail Adaptor Test Kit

Overview

The DAYUAN 6 Cylinder Diesel Injector Flow Meter Diagnostic Set is designed to simplify testing on modern common rail diesel engines. It brings together precise measurement tools, a compact carry case, and a broad adapter range to help technicians observe how much fuel each injector returns under load. Built to handle up to six injectors, the kit supports multiple brands through a complete adapter set, making it a versatile addition to any workshop.

What’s included

• 24 injector adapters covering Bosch Siemens Denso and Delphi injectors (6 per brand)
• 6 graduated reservoir bottles with a 105 ml capacity
• 6 fuel resistant transparent hoses 650 mm long
• 6 graduated manometer tubes with a 95 ml capacity
• Carry case for easy transport and tidy storage
• Flow meter set designed for common rail diesels, compatible with up to 6 injectors

Key capabilities

• Direct measurement of the injector return flow during testing
• Option to measure return flow with an external flow meter for cross-checks
• Comprehensive adapter set supports multiple brands for broad compatibility
• High quality copper adapters and robust components ensure durability during repeated use

In practice, technicians can quantify the proportion of fuel each injector returns, supporting informed diagnostics without guesswork. The balanced combination of adapters, hoses, and measuring vessels reduces setup time and helps keep test loops organized. While the kit provides precise tools for fuel flow assessment, it should be used as part of a broader maintenance and diagnostics routine, and users should follow all safety procedures for engine testing.

Practical applications

Whether servicing a fleet of diesel engines or performing on-site diagnostics, this DAYUAN set offers a repeatable workflow for measuring injector return flow. The included carry case keeps components accessible, and the modular design supports quick substitutions during testing. Use it in conjunction with routine checks and documented test results to build a reliable diagnostics practice.

Workflow tips

• Ensure engine safety and proper cooling before testing
• Attach hoses to the correct adapters and secure connections to prevent leaks
• Crank the engine and observe return flow into the reservoir bottles
• Record each injector reading and compare results across units
• Store components in the carry case between sessions for quick reassembly

Durability and precision matter in daily diagnostics. The DAYUAN set uses robust copper adapters and well-designed measuring vessels to support repeated use, while the organization of the case simplifies transport between jobs. This tool is intended to complement, not replace, routine maintenance and professional procedures.