Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995)
Make a measurement as follows. If it exceeds the specified service limit, replace the parts with new ones.
CAUTION:
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Fix oil pump on a vise to make a measurement. At this time, hold oil pump with the least possible force between two wood pieces.
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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 pulley shaft
Service limit:
Radial play (Direction <-> )
0.4 mm (0.016 in) or less
Axial play (Direction <-> )
0.9 mm (0.035 in) or less
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.
Resistance to rotation of pulley
Service limit:
Maximum load; 9.22 N (0.94 kg, 2.07 Ib.) or less