Oil Pump: Testing and Inspection
OIL PUMP INSPECTIONRotor Clearance Inspection
1. Measure the following clearances.
^ If not as specified, 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 kg., 19.8 lbs.)]
Free length (Reference) 46.79 mm (1.842 inch)