LEIMO KPARTS Cylinder Leak Down Tester Kit — Dual-Gauge Compression Leakdown, 12/14mm Adapters, Carry Case

The LEIMO KPARTS Cylinder Leak Down Tester kit is a dual-gauge diagnostic toolset that measures cylinder leakage to pinpoint worn rings, valve issues, head gasket failures, and other combustion-chamber leaks.

Mechanics, home enthusiasts, and fleet technicians use the LEIMO KPARTS kit to evaluate how well engine cylinders hold pressure without disassembly. The kit combines a regulated air source interface, two gauges, multiple spark-plug adapters and flexible hosework so you can pressurize each cylinder and observe leakage percent and pressure loss locations. It’s built for a wide range of petrol 4-stroke engines and comes in a compact carrying case with clear fittings for both tight and accessible plug wells.

How does the leak down tester reveal engine problems?

By introducing compressed air into a cylinder at top dead center, the tester shows how much pressure the cylinder loses and where it escapes. The dual-gauge arrangement gives both reference pressure and leakage percentage so you can distinguish between minor and severe failures.

• Measures leakage percentage to quantify condition of rings, valves, or head gasket.
• Detects locations of leaks by listening or feeling (intake, exhaust, crankcase, coolant passages).
• Dual gauges provide input and leakage readouts for reliable comparison.

What comes in the kit and how do I fit it to different engines?

The kit contains adapters and connectors sized for common spark plug threads plus a flexible hose to reach recessed wells. Lightweight yet sturdy fittings provide universal fitment for most domestic and imported cars and trucks without special tools.

• Includes 12mm and 14mm spark plug adapters for common thread sizes.
• Fixed connectors M14 x 26mm and M16 x 26mm for direct attachment options.
• 480mm flexi hose and quick-connect regulator for tight or awkward access.

How accurate and safe is the testing process?

Accuracy depends on proper setup: cylinder at top dead center, valves closed and correct adapter seal. The kit’s air regulator and calibrated cylinder leakage gauge let you control test pressure and read leakage without over-pressurizing components.

• Use regulated shop air and set to recommended test pressure to protect valves and seals.
• Calibrated gauge shows leakage percent so you can compare cylinders evenly.
• Follow instructions for TDC and valve positioning to avoid false readings.

When will a leak down test save time over other diagnostics?

A leak down test quickly isolates compression loss sources before you commit to expensive disassembly. It’s often faster and less invasive than tearing down heads or pulling pistons when diagnosing poor compression, rough idle, or oil consumption.

• Useful as a first-line check after a failed compression test.
• Helps prioritize repairs by identifying leak location (valves, rings, head gasket).
• Reduces unnecessary engine teardown by confirming the true fault area.

Who is this for: The LEIMO KPARTS Cylinder Leak Down Tester suit mechanics, mobile technicians, hobbyists and small workshop owners who need a portable, practical tool for engine cylinder diagnostics. It’s appropriate for anyone servicing petrol four-stroke engines in passenger cars, light trucks and many imported models where spark-plug access is limited. The kit’s range of adapters, paired gauges and clear regulator control make it useful for both routine troubleshooting and pre-purchase inspections without needing advanced shop equipment.

Package note: the kit ships in a molded carrying case containing the 480mm flexible hose, 12mm and 14mm adapters, fixed M14 x 26mm and M16 x 26mm connectors, pressure gauge, cylinder leakage gauge, air regulator, instruction sheet and support contact for after-sales service and returns.