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 measurement. 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.

Play of the pulley shaft
Condition:

P: When applying the force of 9.8 N (1.0 kgf, 2.21b)

Service limit:

Radial play (Direction <= =>)

0.4 mm (0.016 in) or less

Fig 1: Identifying Radial Play Of Pulley Shaft
Courtesy of SUBARU OF AMERICA, INC.

Axial play (Direction <= =>)

0.9 mm (0.035 in) or less

Fig 2: Identifying Axial Play Of Pulley Shaft
Courtesy of SUBARU OF AMERICA, INC.
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.

Fig 3: Identifying Ditch Deflection Of Pulley
Courtesy of SUBARU OF AMERICA, INC.
Resistance to rotation of pulley
Service limit:

Maximum load: 9.22 N (0.94 kgf, 2.07 lb) or less

NOTE:

Fig 4: Measuring Load

Courtesy of SUBARU OF AMERICA, INC.