Isuzu 4JJ1 Guide Engine Valve Driving Assembly 8-97309-675-1 8-97309-677-1

Engine Valve Intake/Exhaust Valve Guide Engine Valve Seat Isuzu 4JJ1

 
Specifiafter market dieselion:
 

 
 
Engine Valve for other Car models:

Contents:

1, A valve is a device to close and open a passage. Engine valves are devices that are used in internal combustion engines to allow or stop the flow of fluid or gas from cylinders or combustion chambers during the engine while the engine is operating.

2, These are also known as check valves which are used for air injection in vehicles as part of emission control and exhaust gas recirculation systems. Engine valves are commonly employed in every type of combustion engine such as gasoline, diesel, kerosene, natural gas, or propane.

3, In motor vehicle engines, two engine valves are used for each cylinder-an inlet (or intake) valve and an exhaust valve.

4, The diesel engine gains its energy by burning fuel injected or sprayed into the compressed, hot air charge within the cylinder. The air must be heated to a temperature greater than the temperature at which the injected fuel can ignite. Fuel sprayed into air that has a temperature higher than the “auto-ignition” temperature of the fuel spontaneously reacts with the oxygen in the air and burns. Air temperatures are typically in excess of 526 °C (979 °F); however, at engine start-up, supplemental heating of the cylinders is sometimes employed, since the temperature of the air within the cylinders is determined by both the engine’s compression ratio and its current operating temperature. Diesel engines are sometimes called compression-ignition engines because initiation of combustion relies on air heated by compression rather than on an electric spark.

Isuzu 4JJ1 8-97309-675-1 8-97309-677-1 engine valve photos:
 

 
 
 
 
 
 

1- Raw materials:

We only use highest quality primary 21-4N,4CR9SI2 and 40CR.

2- Complete Tests:

The cylinder heads unitary pass by leak test of valves, for water circuit pressure test and oil circuit pressure test.

Checks controls on the machining are made across different steps of the manufacturing process and the results are automatically compared to the specifiafter market dieselions registered in our systems.

Finally, in a unified way, a visual check of the entire piece before packaging is made.

3- ID System:

We have implemented a system of identifiafter market dieselion and trace-ability of our products, which makes possible to correctly identify and separate each and every one of our engine valve.

We also supply Mitsubishi, Toyota, Nissan,Komatsu,Hino,Cummins, , Hyundai,Deutz,heavy duty truck engine cylinder head with high quality and fast delivery time.