1989-Montero · auto tranny · страница 29 из 109 · Открыть оригинал PDF ↗
CONVERTER STALL TEST
In this test, the engine maximum speed when the
torque con verter stalls with the shift lever in the
‘ID” or “R” range is measured to check operation of
the torque converter, stator and oneway clutch and
check holding performance of the transmission
clutch (including brake).
Caution
do not stand in front or at rear of the vehicle dur-
ing this test.
1. Check the transmission fluid level. The fluid
temperature should be at the level after normal
operation [5O - 80°C (122 - 176”F)l. The engine
coolant temperature should also be at the level
after normal operation [80- 90” (176 - 194”F)].
2. Apply chocks to the rear wheels (right and left).
3. Mount an engine tachometer.
4. Apply fully the parking and service brakes.
Start the engine.
:: With the selector lever in the “D” range, fully
depress the accelerator pedal and read off the
engine maximum speed.
Standard value: 21062400 rpm
NOTE
When doing so, do not keep the engine running
with throttle full open for more than necessary
duration (5 seconds or more). If two or more
stall tests are needed, place the selector lever in
the “N” position and run the engine at about
1,000 rpm to allow the transmission fluid to cool
before another stall test.
7. Place the selector lever in the “R” range and per-
form the test as above.
JUDEGEMENT OF STALL TEST RESULTS
| Stall speed in “D” and “f?” range is equal to each other but |
|---|
| lower than the nominal value. |
Таблица в оригинале
| Stall speed in “D” range is higher than nominal. |
|---|
Таблица в оригинале
| Stall speed in “R” range is higher than nominal. |
|---|
Таблица в оригинале
| (I) Engine output is 10-w (2) Stator one-way clutch is faulty. (Faulty torque converter is suspected if it is lower than nominal by more than 600 rpm.) |
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| (I) O.D. clutch slipping. (2) O.D. one-way clutch faulty (3) Forward clutch slipping (4) One-way clutch No. 2 faulty (5) Low line pressure |
| (I) .O.D. clutch slipping. (2) O.D. one-way clutch faulty (3) Direct clutch slipping (4) Brake No. 3 slipping (5) Low line oressure |
Таблица в оригинале
HYDRAULIC PRESSURE TEST
The hydraulic pressure tesrs (governor pressure and line
pressure tests) are important in determining the causes of
transmission failures.
Before conducting these tee. fluid level and condition and
throttle cable adjustment etc, must be checked for defects or
abnormalities. When conducting the tests, the engine and
transmission should be at correct operating temperatures,
[engine cooling water 80 - 90°C (176 - 194°F). transmission
fluid 50- 8O”C(122- 176OF)].
GOVERNOR PRESSURETEST
1. Place vehicle on a chassis dynamometer.
2. Remove plug from governor pressure takeoff port.
3. Install special tool as shown in figure and place the meter
inside vehicles.
NOTE
When the adapter interferes with teh extension housing,
repair the tool as shown in figure.
4. Apply parking brake.
5. Start engine.
6. Release parking brakes.
1 TSB Revision
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