4. LUBRICATION SYSTEM GRAND DINK 250 Pump Body Outer Rotor OIL PUMP INSPECTION Measure the pump body-to-outer rotor clearance. Service Limit: 0.25mm replace if over Outer Rotor Measure the inner rotor-to-outer rotor clearance. Service Limit: 0.20mm replace if over Inner Rotor Measure the rotor end-to-pump body clearance. Service Limit: 0.12mm replace if over Pump Body Rotor End Dowel Pin Pump Body OIL PUMP ASSEMBLY Install the outer rotor, inner rotor and pump shaft into the pump body. Insert the pump shaft by aligning the flat on the shaft with the flat in the inner rotor. Install the dowel pin. There is one mark on the surface of the inner rotor and outer rotor. The mark is upside. Outer Rotor Inner Rotor Pump Shaft 4-5