How is fuel pump injection timing controlled?
A fuel injection timing control system for a diesel engine has a fuel injection pump supplying fuel to the engine periodically according to the rotation of the engine crankshaft, and a device connected to the fuel injection pump to vary the fuel injection timing in terms of crank angle.
How do you fix the timing on an injector?
There are several ways you can adjust injection timing, depending on the type of engine you have and how old it is. The most common ways to adjust injection timing are programming the ECM, adjusting the fuel injection pump, replacing the camshaft, and replacing the cam followers or gaskets.
How do I know if my injection timing is correct?
Turn the engine so that the unit to be checked is toward the TDC of compression stroke (plunger upstroke) so that hair line marking on plunger and pump body are coincided. When hair lines are coincided, stop turning and check the mark on the fly wheel whether timing is correct or not.
Why is checking injection timing is important?
Injection timing is an important engine parameter, which significantly affects the odorous emissions. If injection starts earlier, the initial air temperature and pressure are lower so the ignition delay would increase.
What happens if a solenoid goes bad?
When the starter solenoid decides to call it quits, the starter motor won’t work, either. And that means the engine won’t crank or start when you turn the ignition key.
What causes a fuel solenoid to fail?
SUBJECT: Faulty Actuators can cause several problems on the vehicle. The Advance actuator solenoid generally fails as a result of contamination within the fuel system.
How do I test my injector pump timing?
You can check the injection timing by measuring the injector pump’s stroke at TDC using a dial indicator.
What does a stop solenoid do?
Stop Solenoids A Stop solenoid is used to cut the fuel supply to the engine when the ignition is switched off. Stop solenoid fits into the diesel distribution pump and can be a cause for diesel systems to fail. When the solenoid is turned on the plunger pulls the valve which allows fuel to pass through.
How does injector pump solenoid work?
Electromagnetic – or solenoid – injectors have a traditional coil, like you would see for a gas injector. The voltage that’s applied to the coil pulls the solenoid valve up. As it does, it allows the check ball to move up with it. Below the check ball is the inlet in the side of the injector for the high pressure fuel.