1987-Montero · Fuel System Carb a · страница 41 из 86 · Открыть оригинал PDF ↗
(5) Start the engine and check the fast idle speed.
Standard value :
2350rpm
[Vehicles with a manual transmission]
2300rpm
[Vehicles with an automatic transmission]
(6) If the fast idle speed is out of specification, adjust with the fast
idle adjusting screw.
NOTE
Rotation direction of adjusting screw and fast idle speed
| Adjusting screw di- rection | Valve opening | Fast idle speed |
|---|---|---|
| Clockwise | Large | Increases |
| Counter-clockwise | Small | Decreases |
Таблица в оригинале
(7) Connect the vacuum hose removed in step (3) to the choke
opener and check that the choke opener cancels fast idle.
CHECKING THE AUXILIARY ACCELERATION PUMP (AAP) N14FYAA
(1) Remove the air filter cover.
(2) Check to be sure that the engine coolant temperature is
30°C (86°F) or lower, and then check according to the
steps in the table below.
-
| Stc ?P | Check conditions | Vacuum hose negative pressure | Pump nozzle |
|---|---|---|---|
| 1 | With the engine idling, disconnect the black vacuum hose from the carburetor AAP. | Negative pressure is felt when the hose end is covered by a finger. | Fuel is sprayed from the nozzle when the hose is disconnected. |
| 2 - | c Warm-up the engine until the temperature of the engine coolant reaches 50°C (122°F) or higher. | Negative pressure cannot be felt by the finger. | - |
Таблица в оригинале
(3) If the change of the vacuum negative pressure is incorrect,
check the therm0 valve for the APP.
If the negative pressure is normal but fuel is not sprayed
from the nozzle, clean the carburetor’s fuel passage.
Оригинальная страница руководства
