Mazda 1990 323 Workshop Manual Supplement page 298

K2
MECHANICAL SYSTEM TEST
TIME LAG TEST
If the selector lever is shifted while the engine is idling, there will be a certain time lapse, or time lag, before
shock is felt. This step measures this time lag for checking conditions of the N-D, 1-2, and N-R accumulators,
forward and one-way clutches, 2-4 brake band, and low and reverse brake.
Preparation
Perform the preparation procedure outlined in STALL TEST. (Refer to page K2-119.)
Procedure
03UOK2-06:
1. Start the engine and check the idle speed in P range. (Refer to Section F.)
Idle speed: 750 f 50 rpm (with parking brake applied)
2. Shift from N range to D range.
3. Use a stopwatch to measure the time it takes from shifting until shock is felt.
Caution
l
Idling for at least one minute is to cool the ATF and prevent deterioration of the fluid.
4. Shift the selector to N range and run the engine at idle speed for at least one minute.
Note
l
Make three measurements for each test and take the average value.
5. Perform the test for the following shifts in the same manner.
(1) N+D range
(2) N-t D range (Hold mode)
(3) N+R range
Time lag: N+D
range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5-I .O second
N+R range ..,..................,..................,..,.,...................................................
0.6-l .O second
Evaluation of Time Lag Test
Condition
Possible Cause
I I
N + D shift
N -+ D (Hold) sl lift
More than specification
Less than specification
More than specification
Less than specification
Insufficient line pressure
Forward clutch slipping
One-way clutch 1 slipping
One-way clutch 2 slipping
N-D accumulator not operating properly
Excessive line pressure
Insufficient line pressure
Forward clutch slipping
2-4 brake band slipping
One-way clutch 1 slipping
1-2 accumulator not operating properly
Excessive line pressure
Insufficient line pressure
N -+ R shift
( More than specification
Less than specification
( Low and reverse brake slipping
Revese clutch slipping
N-R accumulator not operating properly
Excessive line pressure
03UOKX-090
K2-122