Oil Pump Clearance Inspection

Oil Pump Clearance Inspection





1. Measure the thrust clearance between the oil pump gears (A) and clutch housing (B) with a straight edge (C) and a feeler gauge (D).
Standard (new): 0.03 - 0.13 mm (0.001 - 0.005 inch)
Service Limit: 0.15 mm (0.006 inch)





2. Measure the side clearance between the outer rotor (A) and clutch housing (B) with a feeler gauge (C).
Standard (new): 0.1 - 0.2 mm (0.004 - 0.008 inch)
Service Limit: 0.22 mm (0.009 inch)





3. Measure the side clearance between the outer rotor (A) and inner rotor (B) with a feeler gauge (C).
Standard (new): below 0.14 mm (0.006 inch)
Service Limit: 0.2 mm (0.008 inch)
4. If clearance is not within the standard, replace the oil pump outer and inner rotors.