7.
Install the pressure gauge(09351-27000 , 09351-27500) to the injector hall.
Check the engine oil, stater motor and the battery normal condition.
Warm up the engine until the normal operating temperature becoming 80~95°C(176~203℉).
Engine stop, remove the air cleaner assembly.
Remove the Electronic Control Module(ECM).
Remove the injector.(Refer to Injector in FLC Group).
While cranking the engine, remove impurity from the cylinder.
Install the pressure gauge(09351-27000 , 09351-27500) to the injector hall.
While cranking the engine, measure the compression pressure.
Compression pressure
Standard pressure :
2,549kPa (26.0kgf/cm², 369psi) - 270rpm
Minimum pressure :
2,255kPa (23.0kgf/cm², 327psi)
Check the power balance between all cylinder are within limlt by repeating steps 7) through 8) for each cylinder.
Limit : each cylinder pressure 294kPa (3.0kgf/cm², 42psi)
If the cylinder compression in 1 or more cylinders is low, pour a small amount of engine oil into the cylinderthrough the spark plug hole and repeat steps through for cylinders with low compression. Repeat steps 7) through 9) for each cylinder.
If adding oil helps the compression, it is likely that the piston rings and/or cylinder bore are worn or damaged.
If pressure stays low, a valve may be sticking or seating is improper, or there may be leakage past the gasket.
In case of remove the injection nozzle when measure cylinder compressed pressure replace gasket and holder with new one and tighten them Tightening torque.
