Operation CHARM: Car repair manuals for everyone.

Time Lag Test

TIME LAG TEST
When 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 O/D direct clutch, forward clutch, direct clutch, and first and reverse brake.

NOTICE:
- Perform the test at normal operating fluid temperature 50 - 80°C (122 - 176°F).
- Be sure to allow a one minute interval between tests.
- Make 3 measurements and take the average value.





MEASURE TIME LAG
(a) Fully apply the parking brake
(b) Start the engine and check idle speed.

Idle speed: 750 rpm
(In N position and air conditioner OFF)

(c) 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.
In same manner, measure the time lag for N -> R.

Time lag:
N -> D Less than 1.2 seconds
N -> R Less than 1.5 seconds



EVALUATION