Subaru 1600 Service Manual page 328

AUTOMATIC TRANSMISSION AND DIFFERENTIAL
R N 0
Push button
Selector lever
Indicator
Slide plate
Inhibitor
switch
Operation indicated by solid arrow mark
.. must be done while pressing the push button.
¢:J
Operation indicated by white arrow mark
may be done without pressing the button.
Fig. 7-40 Selector system
1) Inspection
1) While pressing the release button,
move the selector lever from the "P"
to "1" range; a click will be heard in
each position. This clicking sound is
caused by a detent of the manual valve
in the transmission, and it indicates
the correct selector lever position.
Check to see that the indicator needle
is aligned to this position, and also see
that it is aligned with the groove of the
guide plate when the release button
and selector lever are released.
2) Confirm that the selector lever
cannot be moved into "R" from "N"
when pushed lightly, without first
pressing the release button.
3) Confirm that the engine can only
be started in "P" and "N" ranges.
4) Confirm that the backup lamp
will light only when the selector lever
is moved to the "R" range.
5) Place the vehicle on a slope, and
set the selector lever to "P" and check
whether the vehicle is locked properly.
2) Adjustment
If the manual valve detent position is
not aligned with the guide plate groove
position, perform the adjustment as
follows.
1) Set the selector lever to "N".
2) Loosen the adjusting nut of the
linkage rod.
Rod
A13-436
3) Set the detent position so the
selector arm is aligned with the "N"
locating mark of the transmission case
[within the range of a 6 mm (0.24 in)
dia. boss].
A13-437
Fig. 7-41 Adjusting rod
4) Adjust the rod so that the "N"
mark of the guide plate is aligned
correctly with this detent position.
5) If the indicator needle is not align-
ed with the guide plate marking,
remove the console box, loosen the
four indicator mounting screws and
adjust the position of the indicator
ASSY.
8) Checking the Vacuum
Diaphragm and Vacuum
Hose
A loose or disconnected vacuum hose
will result in rough engine idling and
an abrupt shifting shock even with
light acceleration. In such a case,
7-33
check the vacuum hose for cracks or
check the vacuum hose joint. Exces-
sively large shift shocks and the emis-
sion of white exhaust smoke while
running may indicate a broken vacuum
diaphragm. If such symptoms occur,
loosen the two bolts securing the
vacuum pipe (at governor cover and at
the engine and transmission jointing),
and turn the vacuum pipe upward
around the bracket of the diaphragm
joint until the bracket comes free
from the bolts.
Pull the vacuum hose and vacuum pipe
out toward you and drain approx. 2Q
(2.1 US qt, 1.8 Imp qt) of ATF.
Remove the vacuum diaphragm by
rotating by hand.
NOTE:
a. Be sure to remove the vacuum
diaphragm when the transmission is
cold. (To avoid a burn.)
b. Also take out the diaphragm rod.
9) Checking, Correcting,
Disassembling, and
Reassembling the Governor
Valve
If automatic shifting is not performed
normally while running in the D range,
or if acceleration is possible only up to
50 to 60 km/h (31 to 37 MPH) in the
D range, it is often attributable to mal-
functioning of the governor valve.
Such malfunctioning may be caused
by sticking of the valve due to clogged
dirt, burrs or nicks on the valve body,
etc.
A13-438
Fig. 7-42 Component of governor
valve
1) Disassembly
1) Remove the three governor cover
mounting bolts from the right side of
the final reduction case, and remove
the governor cover by turning it slight-
ly in order to avoid interference from
the vacuum pipe bracket.