Subaru 2002 IMPREZA Service Manual page 2464

POWER ASSISTED SYSTEM (POWER STEERING)
2. SERVICE LIMIT
Make a measurement as follows. If it exceeds the
specified service limit, replace the parts with new
ones.
CAUTION:
• Fix the oil pump on a vise to make a measure-
ment. At this time, hold the oil pump with least
possible force between two wood pieces.
• Do not set outside of flow control valve or
pulley on a vise; otherwise outside or pulley
might be deformed. Select properly sized wood
pieces.
1) Play of the pulley shaft
On condition:
P: 9.8 N (1.0 kgf, 2.2 lb)
Service limit:
Radial play (Direction
0.4 mm (0.016 in) or less
(1) Dial indicator
Axial play (Direction
Non-turbo model
0.4 mm (0.016 in) or less
Turbo model
0.8 mm (0.031 in) or less
(1) Dial indicator
OIL PUMP
)
S4M0439A
)
S4M0440A
PS-102
2) Ditch deflection of pulley
Service limit:
1.0 mm (0.039 in) or less
NOTE:
Read the value for one surface of V ditch, and then
the value for another off the dial.
(1) Dial indicator
3) Resistance to rotation of pulley
Service limit:
Maximum load; 9.22 N (0.94 kgf, 2.07 lb) or
less
NOTE:
• A rather higher value may be indicated when pul-
ley starts turning.
• Measure the load during rotation and make a
judgment.
(1) Spring balance
S4M0441A
S4M0442A