Side Clearance

Measure clearance between oil pump inner rotor and pump cover. If the clearance exceeds the limit, replace rotor or pump body.

Side clearance: 

1. Standard:  0.02-0.07 mm (0.0008-0.0028 in)
2. Limit:  0.12 mm (0.0047 in)

Fig 1: Measuring Clearance Between Oil Pump Inner Rotor And Pump Cover

Courtesy of SUBARU OF AMERICA, INC.