What are the procedure on how do you timing the injection pump?
If you decide to alter the fuel injection pump, you’ll need to:
- Use a socket wrench on the front camshaft bolt to hand-turn the engine clockwise until the first cylinder is at TDC.
- Both the intake and exhaust valves should be closed, and the TDC mark should be aligned.
What is main injection timing?
The timing is reported in degrees and refers to the number of degrees before top dead center (BTDC) that the spark will ignite the air-fuel mixture in the combustion chamber. Multiple fuel injection events are used in newer fuel injection systems.
What is injection duration?
Injection duration is the period of time during which fuel enters the combustion chamber from the injector. It is the difference between EOI and SOI and is related to injection quantity. Injection pattern. The rate of injection of fuel often varies during the injection duration period.
What is MPFi and CRDi?
CRDi (Common Rail Direct Injection) and MPFi (Multipoint fuel Injection) are intelligent ways of controlling the diesel and petrol engines respectively with the help of modern computer systems. CRDi and MPfi help to improve the power, performance and reduce harmful emissions from a car engine.
What is injection delay?
The injection delay (a) refers to the period between the start activate high volt to solenoid energizing (SOE) and the start of injection (SOI) where the negative value of injection rate returns to zero (Han et al., 2014).
What is bleeding in injection system?
As the fuel travels through the injectors, small amounts of fuel are injected into the combustion chamber. Air bubbles introduced into the supply lines by a fuel filter change or by running out of fuel will prevent the engine from starting and running normally. The air must be bled out until the system is purged.
Which is better MPI or Crdi?
CRDI system is more complex when compared with MPFI, but yet is more efficient, offers more power and has good response to no or part engine loads which makes the diesel engine deliver more power even at low engine RPM.