How do you adjust the timing of fuel injector?
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.
How do you adjust a fuel pump lead?
Adjustment of Fuel Pump Timing
- By adding or reduction shims on the pump base, or.
- By turning the plunger up and down adjustment screw on the pump roller guide, or.
- By shifting the coupling flange between the pump and the drive side of the engine in case of combined unit system, (for small engine)
What is effective stroke in fuel pump?
Fuel pump delivery is controlled by suction and spill valves. When the spill valve opens, end of injection occurs. The effective stroke is controlled by adjusting the suction and spill valve’s eccentric position.
How can I adjust the fuel injection timing?
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. For newer engines with advanced engine computer systems, adjusting ignition timing is as simple as programming the ECM.
Can a fuel pump change fuel pump timing?
For adjustable cam type engines timing can be altered by individual cams of the fuel pumps. For solid camshaft type, it is only required for checking on No. 1 unit.
When does ignition timing need to be adjusted?
A good indicator that ignition timing may need to be adjusted is when the engine runs too lean (too much air, not enough fuel in the fuel mixture) or too rich (too much fuel and not enough air in the fuel mixture).
What happens if you change the timing on a diesel engine?
Advancing the timing can lead to more smoke. It can cause a lot more vibration in the engine, making it noisier. It will also increase NOx emissions, which is the reason manufacturers usually retard the engines slightly in the first place.