What is injector quantity adjustment?
Fuel quantity adjustment method of injectors of fuel dosing system of an internal combustion engine, involves calculating a gradient value from two injection quantity values, gradient value is then considered in fuel quantity adjustment.
How do you adjust the injectors on a Cummins ISX?
Loosen the injector adjusting screw locknut on the cylinder. Do not use a click-type torque wrench. Use a dial-type torque wrench with a range of 0 to 150 in-lb to tighten the injector rocker lever adjusting screw. If the screw chatters during setting, repair the screw and lever as required.
How are injectors measured?
Fuel Injectors are sized by their flow rate. Flow rate is a measurement of how much fuel can be delivered over time. It is listed in pounds per hour (lbs./hr.) or cubic centimeters per minute (cc/min.). The right size injector can supply enough fuel under full load conditions at an 80% duty cycle.
What are injector spacers for?
This spacer set allows you to adapt short LS Truck fuel injectors into a taller LS1/LS6 intake manifold and fuel rail. Commonly used when swapping an LS1 or LS6 intake on an LS Truck engine.
What is fuel injector calibration?
A method of calibrating a fuel injector after its manufacture and prior to installation in an engine where calibration information is determined and later employed to correct the actuation of the fuel injector comprises the steps of arranging the fuel injector in a testing apparatus; operating the fuel injector at a …
What is injector coding?
What is coding? Coding an injector is a vital part of the testing and repairing of injectors, and provides an essential connection between the physical injector firing events and the digital Electronic Control Unit (ECU) of the vehicle’s engine.
What happens if you fail to measure injector height?
Failure to measure valve clearances and injector heights at the required initial period and make necessary adjustments may result in gradual degrading of engine performance and reduced fuel combustion efficiency. Table 2. Measurement/Adjustment Period
When do valve lash and injector heights need to be adjusted?
Effective immediately, the valve lash and injector heights on all Series 60 engines must be measured and, if necessary, adjusted at the initial period listed in Table “Measurement/Adjustment Period” .
How are intake and exhaust valve clearance and fuel injector height adjusted?
Intake and exhaust valve clearance and fuel injector height are adjusted by means of an adjusting set screw and locknut located at the valve end of the rocker arm. See Figure “Valve and Fuel Injector Rocker Arm Assembly Components” .
How to adjust unit injectors on engine 1?
To make an adjustment to the unit injectors on cylinders 1, 2, and 4, remove the timing bolt. Turn the flywheel by 360 degrees in the direction of engine rotation. The direction of engine rotation is counterclockwise, as the engine is viewed from the flywheel end. This will put the number 1 piston at the top center position on the exhaust stroke.