Time Lag Test

Time Lag Test

INSPECTION

NOTE:
When the select lever is shifted while the engine is idling, there will be a certain time elapse or lag before shock is felt. This is used for checking the condition of the low clutch, reverse clutch, low & reverse brake and one-way clutch.

^ Perform the test at normal operation fluid temperature of 70 - 80°C (158 - 176°F).
^ Be sure to allow one minute or more interval between tests.
^ Make three measurements and take the average value.

1) Fully apply the parking brake.
2) Start the engine. Check the idle speed (A/C OFF).
3) Shift the select lever from "N" to "D" range. Using a stop watch, measure the time which takes from shifting the lever until the shock is felt.

Time-lag
Measurement value: 1.2 seconds or less

If "N" --> "D" time lag is longer than specified:
^ Line pressure too low
^ Low clutch worn
^ One-way clutch not operating properly
^ D-ring worn
4) In the same manner, measure the time lag of "N" --> "R".

Time-lag
Measurement value: 1.5 seconds or less

If "N" --> "R" time lag is longer than specified:
^ Line pressure too low
^ Reverse clutch worn
^ Low & reverse brake worn
^ D-ring worn