Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

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 1st and reverse brake.

NOTICE:
- Do the test at normal operating fluid temperature 50 - 80°C (122 - 176°F).
- Be sure to allow 1 minute interval between tests.
- Take three measurements and take the average value.

MEASURE TIME LAG
- Fully apply the parking brake.
- Start the engine and check idle speed.

Idle speed: 750±50 rpm (In N position and A/C OFF)

- Shift the shift lever from the N to D position. Using a stop watch, measure the time it takes from shifting the lever until the shock is felt.

Time lag: N -> D Less than 1.2 seconds

- In same way, measure the time lag for N R.

Time lag: N -> R Less than 1.5 seconds

EVALUATION





If N -> D or N -> R time lag is longer than specified