Diesel Data: Automotive Repair

Oil Pump Clearance Inspection

Oil Pump Clearance Inspection
1. Measure thrust clearance between the oil pump rotors (A) and clutch housing (B) with a straight edge (C) and a feeler gauge (D).





2. Measure side clearance between the outer rotor (A) and clutch housing (B) with a feeler gauge (C).





3. Measure side clearance between the outer rotor (A) and inner rotor (B) with a feeler gauge (C).





4. If clearance is not within the standard, replace the oil pump outer and inner rotors as a set.