Oil Pump Inspection

OIL PUMP INSPECTION

Inner Rotor, Outer Rotor, and Oil Pump Body Inspection





1. Measure the following clearances. Replace the rotor or oil pump body as necessary.

Standard tooth tip clearance: 0.02 - 0.18 mm (0.0008 - 0.0070 inch)
Maximum tooth tip clearance: 0.20 mm (0.0079 inch)





Standard Outer Rotor-to-oil pump body clearance: 0.090 - 0.176 mm (0.0036 - 0.0069 inch)
Maximum Outer Rotor-to-oil pump body clearance: 0.22 mm (0.0087 inch)





Standard side clearance: 0.03 - 0.11 mm (0.0012 - 0.0043 inch)
Maximum side clearance: 0.14 mm (0.0055 inch)

Pressure Spring Inspection





1. Apply pressing force to the pressure spring and measure the spring height.

Standard height 35.42 mm (1.394 inch) [Pressing force: 62.8-68.6 N (6.4-7.0 kgf, 14.1-15.4 ft. lbs.)]