Mazda MX-3 Oil Pump Assembly (D2-13) - Rotor Clearance, Torque & Seal Specs

This is page D2-13 of a factory service manual section covering the engine oil pump (section D2). It provides inspection and assembly procedures for a rotor-type oil pump. The page specifies the rotor side clearance specification of 0.03—0.09 mm (0.0012—0.0035 in) with a maximum of 0.13 mm (0.0051 in), measured with a straightedge and feeler gauge. The Assembly Note covers three areas: (1) Inner and outer rotor — apply clean engine oil to the friction surfaces of the pump body and rotors, then install the rotors with their alignment marks positioned as shown in the illustration; (2) Pump cover — install the cover with a tightening torque of 5.9—8.8 N·m (60—90 kgf·cm, 53—78 in·lbf) and verify the pump rotates smoothly by hand; (3) Oil seal — oil the new seal, install it by hand into the pump body, then press it in using SST 49 H010 401 to a depth of 0—0.7 mm (0—0.027 in). Four line illustrations accompany the text showing the clearance measurement, rotor mark alignment, cover installation, and seal pressing operation.