Will spark plug out of a single, connected to the cylinder pressure gauge, joint joint in the spark plug the hole. Go to measure engine cylinder pressure to determine the car engine is normal or have a problem reference check out the adjacent two cylinder cylinder compression pressure value than the same standard low words is cylinder bed gasket destroyed or cylinder cover cylinder bed surface rough and cause airtight bad.

 

This automotive compression tester works with gasoline engines. It fits most spark plug holes.

 

Highlights:

 

- Compact tool deals with your big trouble about cylinder pressure testing 

- Universal, test cylinder pressure on most fuel injection equipped vehicle 

- High quality material, durable and long service life 

- Easy to use

Features:

 

Special used to check cylinder gas compression pressure the size of the instrument.

2.5'' diameter gauge with dual color coded scale.

 

Air gauge with quick coupling & pressure release button.

 

10" durable rubber hose with M14*1.25 

6" heavy-duty stem with rubber cone cap fits different spark plug holes.

 

Blow moulded carrying case for easy transportation and storage.

 

Specifications:

 

- Dual Gauge Readings: 0~300psi, 0~20KPaX100

- Flexible rubber hose length: 11.8 inches 

- Spark plug adapter diameter: 14mm

The way of use: 

(1) start engine and running to normal operating temperature, such as engine flameout and stop after operation, remove all spark plug;

(2) the envoy valve fully open, the connection of gauge head pressure in the spark plug hole; 

(3) using motor drive the engine to 100-150 r/min speed rotation 3-5 seconds. The instrument of pointer on will gradually rise, to a numerical namely will stop, the indicated value is cylinder compression pressure; 

(4) a button, make the pointer to zero; 

(5) according to the above steps, repeated measurement 2 ~ 3 times, in order to improve the measurement precision.

(6) general car cylinder pressure > 0.9 MPa, and train < 8% (each cylinder pressure difference, gasoline engine not more than the average 8% of each cylinder pressure). Such as the measured value is less than the specified value, and air intake system normal, the cylinder and the piston and cylinder head exist leakage, possible bound cylinder, piston, valve, piston ring appear wear away, ablation and other bad situation. Such as the measured value is greater than the specified value, and the exhaust system is normal, the possible reasons for combustion chamber serious product .