Time Lag Test
TIME LAG TESTWhen the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag before the shock can be felt. This is used for checking the condition of the underdrive clutch, forward clutch, direct clutch and first and reverse brake.
NOTICE:
- Perform the test at normal fluid operating temperature 50-80°C (122-176°F).
- Be sure to allow one minute interval between tests.
- Make 3 measurements and take the average value.
MEASURE TIME LAG
1. Fully apply the parking brake.
2. Start the engine and check the idle speed.
Idle speed (N position) 700 ± 150 rpm
3. Shift the shift lever from N to D position. Using a stop watch, measure the time it takes from shifting the lever until the shock is felt.
Time lag: Less than 1.2 seconds
4. In the same manner, measure the time lag for N -> R.
Time lag: Less than 1.5 seconds
EVALUATION
1. If N -> D time lag is longer than specified:
- Line pressure too low
- Forward clutch worn
- No.2 and underdrive one-way clutch not operating properly
2. If N -> R time lag is longer than specified:
- Line pressure too low
- Direct clutch down
- First and reverse brake worn
- Underdrive brake worn