Diesel Injector Control Valve Set

The excessive clearance between the valve stem wear, housing and the valve cap will causes injector lag.

The valve stem lag will cause the injector to start the solenoid to start, and the oil needle can not return quickly after the nozzle is opened.

Check the injector components before replacing the injector valve assembly according following the injector service manual to avoid further damage to the injector valve assembly after replacement.