Engine Cylinder Leak-Down Tester GEKO G02735 for combustion chamber diagnostics

The Engine Cylinder Leak-Down Tester GEKO G02735 is a handheld diagnostic tool designed to assess combustion chamber sealing and identify sources of leakage such as valves, piston rings, and head gasket failures. It measures the rate of pressure loss in a cylinder while the piston is held at top dead center, providing clear indications of air or compression escape paths to help guide repair decisions and routine engine maintenance.

Advantages

The tester provides a measurable and repeatable method to evaluate cylinder sealing without requiring engine rotation during the test, enabling rapid detection of leaks with minimal disassembly. Its compact, handheld design allows easy access to individual cylinders and simplifies testing on a variety of engine types. The tool produces quantitative results that support diagnostic accuracy and reduce guesswork when locating combustion chamber faults.

Suitable for

• Professional engine diagnostics and workshop technicians
• Routine maintenance checks on petrol and diesel engines
• Identifying leaks related to intake/exhaust valves, piston rings, and cylinder head gaskets
• Pre-purchase vehicle inspections and troubleshooting intermittent compression loss

Key specifications

• Handheld mechanical leak-down tester for individual cylinder assessment
• Pressure measurement capability suitable for combustion chamber diagnostics
• Durable construction for workshop use and repeated testing
• Quick connection interface for spark plug or injector ports
• Portable size for access to confined engine bays

How to use

Set the piston of the cylinder to top dead center on the compression stroke, then connect the leak-down tester to the spark plug or injector opening according to the vehicle manufacturer’s service instructions. Pressurize the cylinder using the tester’s feed and observe the pressure reading and rate of loss. Listen for audible air escape around the intake and exhaust ports, crankcase, or coolant passages to help localize the leak. Record the measured pressure loss and compare it with acceptable limits for the specific engine to determine the severity and likely cause of the leak.

Usage recommendations

Use the tester in a well-ventilated area, follow vehicle-specific service procedures for piston positioning and pressure limits, and inspect all connections for tightness before pressurizing. When interpreting results, combine leak-down readings with visual inspection and other diagnostic methods such as compression testing or borescope inspection for accurate fault identification.