Checking and adjusting the fuel injection pump (Peugeot 206)

Adjusting the fast idle mode

Adjust the fast idle speed on a cold engine in the following order:

• check that lever 2 (figure 4.118) rested against the right stop;
• if the lever does not stop, adjust the tension of the cable 9 using the clamp 10;
• finally adjust the tension using the cable sheath clamp 7.

Adjust the fast idle speed on a hot engine in the following order:

• make sure that cable 9 is not overtightened;
• compared to a cold engine, on a hot engine the cable should move more than 6 mm.

Adjusting the accelerator drive mechanism

Adjust the accelerator drive mechanism in the following order:

Note: The engine must be warmed up before adjustment (the electric fan must operate for two cycles). The fast idle mode drive must be free, the gap A must be within 0.5-1 mm.

• press the accelerator pedal all the way down;
• make sure that lever 8 rests against limit screw 6. Otherwise, change the position of the accelerator cable tension lock pin;
• make sure that in the idle position, lever 8 rests against locking screw 5.

Adjusting the engine stabilization mechanism (residual fuel supply)

Adjust the engine stabilization mechanism in the following order:

• install gasket 4 (see figure 4.118) 3 mm thick between the load lever 8 and the stop bolt 5, which prevents the engine from stopping;
• press the engine stop lever 1;
• insert pin 3 with a diameter of 3 mm into lever 2;
• adjust the engine speed (1700±100) min⁻¹ by turning the stop 5;
• remove pin 3;
• remove the dipstick.

Adjusting the engine idle speed

Adjust the idle speed of the crankshaft with screw 11 (see figure 4.118).

With air conditioning, the crankshaft speed is (875±25) min⁻¹.

Without air conditioning, the crankshaft speed is (800±25) min⁻¹.

Control of engine operation in deceleration mode

Check the engine operation in deceleration mode in the following order:

• press lever 8 (see figure 4.118) throttle valve and achieve an engine speed of 3500 min⁻¹;
• release the load lever 8.

Note: The deceleration should occur in the range of 2.5-3.5 s.

The reduction in speed should be approximately 50 min⁻¹ relative to the idle speed. Otherwise, refer to Table 4.11.

Table 4.11. Engine operation control in deceleration mode

Noted deviations	Method of elimination
Slowing down too fast
The engine shows a tendency to stop working, stalls	Tighten screw 5 (see figure 4.118)) a quarter turn
Too slow deceleration
The rotation speed exceeds the idle speed	Loosen screw 5 a quarter turn

Caution! In each case, the idle speed of the crankshaft should be checked for possible adjustment.