## Engine Lubrication

#### Oil Pump Overhaul (cont'd)

8-11

Oil Pump Removal

1. Remove the oil pan (see page 7-12).

1. Remove the oil pump chain tensioner.

1. Remove the oil pump.

Oil Pump Inspection

1. Remove the pump cover.

1. Check the inner-to-outer rotor radial clearance between the inner rotor (A) and outer rotor (B). If the inner-to-outer rotor radial clearance exceeds the service limit, replace the oil pump.

   Inner Rotor-to-Outer Rotor Radial Clearance

Standard (New):

0.02 - 0.15 mm

(0.001 - 0.006 in.)

Service Limit:

0.20 mm (0.08 in.)

1. Check the housing-to-rotor axial clearance between the rotor (A) and pump housing (B). If the housing-to-rotor axial clearance exceeds the service limit, replace the oil pump.

   Housing-to-Rotor Axial Clearance

Standard (New):

0.02 - 0.07 mm

(0.001 - 0.003 in.)

Service Limit:

0.12 mm (0.005 in.)

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