Pressure Loss Tester Petrol Engine Twin Gauge Leak Test Kit

A pressure loss tester for petrol engines, used to help diagnose where combustion pressure is being lost. The twin gauge layout allows you to check for leakage linked to intake valves, exhaust valves or cylinder head gasket faults without relying on guesswork alone.

Used for vehicle maintenance, servicing and engine fault-finding, this kit suits garage work, workshop use and experienced home mechanics working on petrol engines. It is useful when investigating poor running, suspected compression loss or signs that an engine may be leaking past the valves or head gasket. For repair work, rebuild checks or routine diagnosis, it gives a clearer picture before parts are removed unnecessarily.

The kit includes twin gauges and an air regulator, along with M12 and M14 x 1.25 adapters to suit common petrol engine testing work. A hose adapter and extension with quick coupling are also supplied, helping when access around the engine bay is awkward. The included thread sizes make it more practical for checking different applications, and the quick coupling helps keep testing straightforward when moving between set-up stages. For regular diagnostic work, having the main connections in one kit helps avoid hunting around for separate fittings.

Petrol engine leak-down tester specifications

• Application: Used to diagnose combustion pressure loss in petrol engines.
• Checks: Helps identify leakage at intake valves, exhaust valves and cylinder head gaskets.
• Gauge setup: Twin gauges, a leak gauge and a pressure gauge, fitted for pressure loss testing.
• Contents: Supplied with air regulator, hose adapters, extension and quick coupling.
• Thread sizes: Includes M12 and M14 x 1.25 adapters.
• Testing: Shows pressure loss in percent and allows an acoustic test.

A practical choice for regular engine diagnosis and repair work.