4. LUBRICATION SYSTEM MXU 550EXi/MXU500i Dowel Pin Oil Pump Cover ASSEMBLY Dip all parts in clean engine oil. Install the outer rotor into the oil pump body. Install the inner rotor into the outer rotor. Install the oil pump shaft. Install the dowel pin onto the oil pump body. Install the oil pump cover onto the oil pump body by aligning the dowel pin. Oil Pump Cover Install and tighten the screw to the specified torque. Torqur: 3 N·m (0.3kgf·m, 2 lbf·ft) Screw 4-11