## Engine Lubrication

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

8-7

Inspection

1. Check oil pump shaft (A), rotors (B), (C) and cylinder block (D) for damage.

   If excessive wear or damage is discovered, the oil pump assembly must be replaced.

Clearance the oil pump shaft in cylinder block:

New rotors:

0.040 – 0.125 mm

(0.002 – 0.005 in.)

Run-in rotors:

0.200 mm (0.008 in.) Max

End Play

1. Inspect end play.

End play between oil pump retainer and rotors (A + B - C):

New rotors:

0.035 – 0.100 mm

(0.001 – 0.004 in.)

Run-in rotors:

0.150 mm (0.006 in.) Max

1. Clearance between outer rotor and cylinder block.

Clearance between outer rotor and cylinder block:

New rotors:

0.24 – 0.36 mm

(0.009 – 0.014 in.)

Run-in rotors:

0.40 mm (0.016 in.) Max

1. Chip clearance between inner and outer rotor.

Chip clearance between inner and outer rotor:

New rotors:

0.13 – 0.15 mm

(0.005 – 0.006 in.)

Run-in rotors:

0.20 mm (0.008 in.) Max

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