Subaru 1600 Service Manual page 333

AUTOMATIC TRANSMISSION AND DIFFERENTIAL
3) Interpretation of stall test results
Stall speed
Assessment Cause Remarks
Higher than Slippage of automatic trans-
• Low line pressure (If stall
* 1: Brake band slippage cannot
2,300 rpm mission clutch, brake band, etc. speed is higher than speci-
be judged by stall tests;
(Further stall tests are not
fied range at any shift posi- however, if it slips, engine
necessary. ) tion).
speed is higher than speci-
• One-way clutch slippage.
fied rpm while car is being
(If stall speed is higher than
driven in the 2 range.
specified range only in the *2: Slippage of reverse clutch/
D range.)
low & reverse brake can be
•
* 1: Brake band slippage
judged by road tests.
(If stall speed is higher
If engine compression can
than specified range be used as a brake with
only in the 2 range.)
select lever in the 1 range,
•
*2: Slippage of low
& reverse clutch is slipping; if
reverse brake or reverse it cannot be used, low
&
brake
reverse brake is slipping.
(If stall speed is higher
than specified range
only in the R range.)
2,100 - 2,300
• Control members are in good
• One-way clutch can be
rpm
order in the D, 2, 1 and R
checked for condition by
ranges.
road tests. **
• Engine in good order.
Lower than
• Throttle not fully opened.
2,100 rpm • Erroneous engine operation
or one-way clutch slippage.
** Road test • Acceleration is not properly
One-way clutch slippage.
*3: Abnormal temperature rise
made up to 50 km/h
*3: One-way clutch jamming.
occurs.
(31 MPH).
Erroneous engine operation.
• Car speed does not attain
more than 80 km/h
(50 MPH).
• Operation is not proper at
all car speeds.
7-38
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