Oil Pump Inspection
Oil Pump InspectionReference: Oil Pump Disassembly and Assembly
^ Measure inside diameter of oil pump body bushing. If inside diameter exceeds limit, replace oil pump body.
^ Measure inside diameter of stator shaft assembly bushing. If inside diameter exceeds limit, replace stator shaft assembly.
^ Check oil pump body clearance of driven gear.
Push driven gear (1) to one side of oil pump body (2).
Using a feeler gauge, measure clearance between driven gear (1) and oil pump body (2).
If clearance exceeds standard value, replace oil pump assembly.
^ Check tip clearance of driven gear.
Measure radial clearance between driven and drive gears tooth tip.
If clearance exceeds standard value, replace oil pump assembly.
^ Check side clearance of both gears.
Using a straightedge (1) and a feeler gauge, measure side clearance between gears and oil pump body.
If clearance exceeds standard value, replace oil pump assembly.
Side clearance between gears and oil pump body
Standard: 0.02 - 0.05 mm (0.0008 - 0.002 inch)
