MANUALS · FUEL [13] · страница 256 из 340 · Открыть оригинал PDF ↗
Текст распознан со скана. Числа и обозначения можно сверить с оригиналом ниже.
(13)lf the fuel pressure measured in steps (9) to (12) deviates from
the standard value range, check for the probable cause by
referring to the table below, and then make the appropriate
repair:
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Condition | Probable cause | Remedy |
|---|---|---|
| Fuel pressure is too low. Fuel pressure drops during racing: | Fuel filter is clogged. | Replace the fuel filter: |
| No fuel pressure in fuel return hose. | Malfunction of the valve seat within the fuel pressure regulator; leakage or fuel to return side caused by spring deteri- oration: | Replace the fuel pressure regulator |
| Fuelpump low discharge pressure | Replace the fuel pump | |
| Fuel pressure is too high | The valve within the fuel pressure reg- ulator is sticking | Replace the fuel pressure regulator. |
| Clogging of the fuel return hose andlor the pipe_ | Clean or replace the hose andlor pipe_ | |
| No change of the fuel pressure when vacuum hose is connected and when not connected. | Damaged vacuum hose or nipple clog- ging: | Replace the vacuum hose, or clean the nipple |
(14)Stop the engine and check for a change of the value indicated
by the fuel pressure gauge. The condition is normal if there is
no decrease of the indicated value within two minutes
If there is a decrease of the indicated value, monitor the speed
of the decrease, and, referring to the table below, determine
the cause of the problem and make the appropriate repair.
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Condition | Probable cause | Remedy |
|---|---|---|
| After the engine is stopped, the fuel pressure drops gradually | Injector leakage_ | Replace the injector |
| . | Leakage at the fuel pressure regulator valve seat. | Replace the fuel pressure regulator. |
| There is a sudden sharp drop of the fuel pressure' immediately after the engine is stopped: | The check valve (within the fuel pump) is not closed. | Replace the fuel pump. |
(15)Remove all remaining pressure from inside the fuel pipe
(Refer to P.13-89.)
(16Disconnect the fuel pressure gauge and the special tool
from the delivery pipe.
Caution
Because there will beslight amount of remaining
pressure in the fuel pipe line, use rags tocover So
that fuel doesn't splatter.
Оригинальная страница руководства
