Performance Tool W89729 Cylinder Leak Down Tester Kit with Pressure Regulator

The Performance Tool W89729 Cylinder Leak Down Tester Kit is an essential diagnostic tool for identifying the root causes of low cylinder compression in engines. This professional-grade tester helps pinpoint internal engine problems by pressurizing the cylinder and measuring air loss, allowing you to determine whether leaks are occurring past the rings, valves, head gasket, or other critical sealing surfaces.

Key Features:

• Adjustable Pressure Regulator: Provides precise control over test pressure for accurate diagnostics across different engine types
• Dual Thread Adapters: Includes both 12mm and 14mm spark plug adapters to fit most domestic and import vehicles
• Comprehensive Diagnostics: Helps identify causes of low cylinder compression including worn rings, burned valves, blown head gaskets, and cracked cylinders
• Durable Storage Case: Comes in a blow-molded hard case to keep all components organized and protected between uses

This leak down tester works by introducing compressed air into the cylinder at top dead center and measuring the percentage of air that escapes. By listening at the exhaust, intake, crankcase, or cooling system, technicians can quickly diagnose where internal engine leaks are occurring, making it invaluable for engine rebuilds, performance tuning, and troubleshooting compression issues.