Hyundai Sonata 1991 Shop Manual page 432

GENERAL
When the adjustment screw is turned to the right. the line
pressure becomes lower; when it is turned to the left. it
becomes higher.
Standard value: 870-890 kPa (124-126 psi, 8.9-9.1
kg/cm
2 )
Oil pressure change for each turn of adjustment screw :
38 kPa (4.6 psi, 0.39 kg/cm
2 )
6. Check to be sure that the O-ring is installed on the upper
surface of the valve body at the place shown in the figure.
7. Replace the O-ring of the solenoid valve connector with a
newone.
8. Install the valve body assembly to the case and then insert
the solenoid valve connector into the case. Be sure. at this
time. that the notched part of the connector faces as shown
in the figure.
Also be careful that the lead wiring isn't caught.
9. Tighten valve body assembly mounting bolts
(10
pieces) to
10-12
Nm
(100-120
kg.cm.
7.5-8.5
Ib.ft).
A bolt: 20 mm (0.787 in.) long
B bolt : 28 mm (1.102 in.) long
C bolt: 45 mm (1.772 in.) long
10. Install the oil filter.
11.
Install a new oil pan gasket and oil pan. and tighten the 2
bolts.
12.
Pour in the specified amount of ATF.
13. Make the oil pressure test. Readjust if necessary.
B
A
ADJUSTMENT OF REDUCING PRESSURE
Y45C31A
1. Remove parts up to the oil filter in the same way as for
adjustment of the line pressure. The valve body need not be
removed.
2. Turn the adjustment screw of the lower valve body and
adjust so that the reducing pressure is the standard value.
When the adjustment screw is turned to the right. the
reducing pressure becomes lower; when it is turned to the
left. it becomes higher.
45-43