Features:

1. The built-in one-way valve with pressure holding function ensures that the pressure gauge obtains the maximum pressure at the spark plug during the compression process.

2. Cylinder compression tester kit handheld carrying case is made of high quality PVC, keeps all accessories in place and protects the gauges during storage and transportation. 

4. Two universal rubber cone adapters provide quick and easy connections suitable for most spark plug depths, and an extended hose allows you to get into tight spaces. Connect with the dial using a quick connection coupler, simple and fast. 

5. The cylinder compression tester kit is used to quickly and accurately test the cylinder pressure of gasoline engines. Meter readings can help diagnose the following problems: stuck valve, carbon deposits, cracked cylinder head or defective main gasket, poor or worn piston ring installation, burned or damaged piston.

Specification:

Condition: Brand New (Never Been Used or Installed)

Material: Rubber + Brass + Iron

Color: Silver + Black

Fitment Type: Performance/Custom

Dual Gauge Readings: 0-300psi, 0-20bar (1bar=100kPa)

Adapters Thread Size: M10 x 1.0mm, M12 x 1.25mm, M14 x 1.25mm, M18 x 1.5mm

Hose overall length: 17.32" / 440mm

Straight Line Pressure Tube Length: 160mm

Angled Pressure Tube Length: 155mm

Fitment:

For all engines; cars, trucks, motorcycles, lawn mowers, chainsaws, boat motors and other types 2 or 4 stroke, single or multi-cylinder gasoline engines.

Please kindly check our item description, photos and size are consistent with your needs, so as to avoid discomfort in subsequent installation.

Package Includes:

1 Pcs Gasoline Compression Tester

1 Pcs Hose

4 Pcs Thread Adapters 

1 Pcs Straight Line Pressure Pipe

1 Pcs Angled Pressure Pipe

1 Pcs Manual

Usage Method:

1. Start the engine to normal temperature, and then shut off engine and disconnect all spark plug wires, clean all spark plug holes.

2. Take down air filter and turn throttle plates to wide open position.

3. Disconnect ignition system, install push-on type rubber cone end adapter, or screw assembled hose into spark plug hole (Remember to tighten it by hand but not with a wrench nor over-tighten). Then connect to the pressure gauge through a quick connect system. Ensure all parts are fully connected.

4. Crank the engine at least 5 compression strokes until the pressure reading stops changing. Record the pressure value, then press the button (release valve) to set the pressure to zero.

5. Test each cylinder 2 or 3 times to improve the measuring accuracy. Remember to reset the pressure and crank engine after each test, as well as put the removed parts back in place especially before the engine starts. 

Tips:

2. Do not use a wrench. Do not use too much force when using tools.

3. Always release the pressure via the release valve before disconnecting the tester.

4. Wash with a mild detergent or solvent and wipe the used tools with a damp cloth.

5. During actual measurement, each cylinder should be repeatedly tested for 2-3 times.

6. After insert the quick plug into the quick coupler, push the anti-slip knurled grip ring on the quick coupler back. 

7. This auto cylinder compression test tool should be used by professional or under the guidance of a professional. 

8. Before use, please check whether the parts have dislocation, cracks and other conditions that may affect the operation accuracy.

9. Always refer to the vehicle manufacturer's service instructions, or a proprietary manual, to establish the current procedure and data. 

10. Set the throttle plates to the wide open position when test. Please note, after test, failure to return the throttle plates to the closed position before starting the engine can cause serious damage to the engine.

Notes:

1. All dimensions are measured by hand, there may be small deviations.

2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.