1989-Montero · fuel system · страница 20 из 53 · Открыть оригинал PDF ↗
ELECTRIC CHOKE HEATER N14FOCAb
(1) Disconnect the carburetor connector and check continuity
of the heater.
Normal state : Should be conductive [approx. 6 R at
20°C (68aF)]
(2) If the heater is not conductive, replace the electric choke
body (bimetal assembly).
NOTE
For replacement procedures, refer to DISASSEMBLY AND
REASSEMBLY (P.14-35.)
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(1) Remove the air cleaner.
For information concerning the checking of the
thermo valve, refer to GROUP 25 - Exhaust Gas
Emission Control System.
(2) Check conditions of the choke valve according
to the procedures given in the table below.
| Check conditions | Choke valve when normal | Presumed cause when abnormal | ||
|---|---|---|---|---|
| Before starting engine | Malfunction of bimetal assembly Malfunction of link | |||
| 2 | 10°C (50°F) or lower | Engine idling after start (Start after first fully depressing accelerator pedal one time.) | Slowly open slightly immediately after starting [Clearance: 2.3-2.5 mm (.091-,098 in.)] | Delay valve clogged Diaphragm damaged (chamber A) |
| Disconnect the vacuum hose (yellow stripe) from the choke breaker during idling. | No movement | Malfunction of therm0 valve | ||
| 4 | 25°C (77°F) or higher | Connect the vacuum hose (yellow stripe) and let the engine idle. - | When the chok;valve is lightly closed by a finger, stops at a position open more than step 2. [Clearance: approx. 3 mm (.I2 in.)] | Malfunction of therm0 valve Diaphragm damaged (chamber B) |
| / TSB Revision | ------I - |
Таблица в оригинале
Оригинальная страница руководства
