G4-85 ISUZUS HEUI Diesel Injector Repair and Testing Kit

Specialized G4-85 kit for Isuzu HEUI (4JX1) injectors. Facilitates sleeve disassembly, O-ring replacement, and internal sealing testing to fix oil/fuel mixing issues.

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Details

The Isuzu 4JX1 engine uses a unique HEUI injector design. The G4-85 Kit addresses the common issue of internal O-ring failure which allows oil to mix with diesel. It includes the specific sleeve removal tools and a test fixture to verify seal integrity before installation.

Features & Advantages:

Sleeve Remover: Safely extracts the injector sleeve without damage.
Leak Tester: Pressurizes the oil and fuel passages to ensure isolation.

Application Scenarios: Repairing Isuzu Trooper / Jackaroo 3.0L diesel engines.
FAQ:
Q: Does this fix hard starting? A: If the hard start is caused by hydraulic oil pressure loss in the injector, this tool helps diagnose and fix the seals.