Subaru 2002 IMPREZA Service Manual page 2460

POWER ASSISTED SYSTEM (POWER STEERING)
13) Mount on the pressure switch on front casing.
14) With the knock pin positions aligned, install the
rear cover.
CAUTION:
Loosely tighten the bolts in the sequence (A),
(B), (C), and (D) shown in figure. Then, tighten
in the same sequence.
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
(1) Rear cover
15) Install the spring into front casing. Then, with
the spool valve dipped in specified hydraulic oil, in-
stall it into the front casing.
16) Using a 5-mm dia. round bar, ensure the valve
moves smoothly.
17) Set the O-ring, with grease applied to it, onto
connector and secure connector to front casing.
CAUTION:
• Use care to prevent damage to O-ring at in-
stallation.
• When tightening the connector, ensure the O-
ring does not protrude or get caught.
Tightening torque:
49 N·m (5.0 kgf-m, 36.2 ft-lb)
(1) Flow control spring
(2) Spool valve assembly
(3) O-ring
(4) Connector
18) Fix the oil pump pulley temporarily.
OIL PUMP
ST0100
(1)
(2)
(3)
(4)
ST0092
19) When reassembly procedures have been com-
pleted, turn the shaft by hand to ensure it turns
smoothly. If it binds or other unusual conditions are
evident, disassemble again and check for foreign
matter trapped on sliding surfaces and improper in-
stallation. Eliminate the cause of trouble.
20) Check the followings by referring to "CHECK"
article.
• Excessive play in pulley shaft
• Ditch deflection of pulley
• Resistance to rotation of pulley
• Measurement of generated oil pressure
PS-98