Oil Pump: Testing and Inspection
OIL PUMP INSPECTIONRotor Clearance Inspection
1. Measure the following clearances. If it exceeds the specification, replace the rotor or oil pump body
Standard tip clearance: 0.02 - 0.18 mm (0.0008 - 0.0070 inch)
Maximum tip clearance: 0.20 mm (0.0079 inch)
Standard body clearance: 0.09 - 0.17 mm (0.0036 - 0.0066 inch)
Maximum 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. If not as specified, replace the pressure spring.
Standard height 35.37 mm (1.393 inch) [Pressing force: 88.1 N (8.98 kgf, 19.8 ft. lbs.)]
Free length (Reference): 46.79 mm (1.842 inch)