Please note: A special tachometer is required to check the RPM of a diesel engine.
Attention! Idle speed with high pressure fuel pump: DPC – 775±50 rpm.; DPRC – 875±25 rpm.
Engine stop lever limiter screw (1) and idle speed adjustment screw (2)
Installing the Ford 23-016 adjustment template (2) onto the idle speed adjustment screw (1)
1. Warm up the engine until the radiator fan turns on.
2. Wait (with the engine idling) until the fan turns off.
3. Turn off the engine and connect a special tachometer in accordance with the attached instructions.
4. Start the engine, while all electrical consumers must be switched off.
5. Loosen the engine stop lever limiter screw until a gap appears between the screw and the lever (see Fig. Engine stop lever limiter screw (1) and idle speed adjustment screw (2)).
6. Check the idle speed. To adjust the idle speed, loosen the lock nut and turn the adjusting bolt located near the fuel pump lever until the required speed is obtained (see Fig. Engine stop lever limiter screw (1) and idle speed adjustment screw (2)).
7. Tighten the engine stop lever stop screw until it contacts the lever and the idle speed begins to increase.
8. Bring the engine to maximum speed (for no more than 5 seconds), release the accelerator pedal and measure the time it takes for the speed to decrease to idle speed. If the time exceeds 4 seconds, it is necessary to adjust the speed decrease time.
9. Remove the accelerator cable from the high pressure fuel pump control lever.
10. Install the Ford 23-016 adjustment template (2) onto the head of the idle speed adjustment screw. If there is no template, install a 3 mm thick plate instead of the template (see Fig. Installing the Ford 23-016 adjustment template (2) onto the idle speed adjustment screw (1)).
11. Start the engine and measure the engine speed, which should be within 900±30 rpm. If necessary, set the specified speed using the engine idle speed adjustment screw.
12. Remove the template, connect the accelerator cable, check and, if necessary, adjust the engine idle speed.
13. If the RPM decreases too rapidly, the engine tends to stall. In this case, loosen the screw by 1/4 turn. If the RPM decreases too slowly, tighten the screw by 1/4 turn. In each of these cases, check and, if necessary, adjust the engine idle speed.
(For more information, please visit the specified website: «fordbook.ru»)