Fig. 2.71. Details of the engine lubrication system of the GLA model.
1 - gasket; 2 — oil dipstick: 3 — oil dipstick tube; 4 - oil pump; 5 - rubber gasket; 6 - replaceable filter element; 7 - oil intake; 8 and 10 - oil pan gaskets; 9 and 14 - rubber seals; 11 — plug gasket; 12 - repair kit; 13 — oil drain plug; 15 — oil pan; 16 - washer; 17 — bolt.
Oil pressure at a temperature of 80°C: at a crankshaft speed of 750 rpm - 0.6 kgf/cm²; at a crankshaft speed of 2000 rpm — 1.5 kgf/cm². At higher speeds, the oil pressure should not exceed 5.0 kgf/cm². The actuation pressure of the pressure reducing valve is 2.41-2.75 kgf/cm². The clearance in the gear engagement is 0.14-0.26 mm. The clearance between the gears and the pump cover is 0.025-0.060 mm. Between the outer gear and the housing 0.14-0.26 mm. Brand and model of oil filter Motorcraft EFL 101, Purflux LS 188, AC SE, Guiot GH 966. The emergency oil pressure sensor turns on the red signal lamp on the instrument panel at an oil pressure of 0.3-0.5 kgf/cm².
Removal, disassembly, assembly and installation of the oil pump
Unscrew the three bolts securing the pump to the cylinder block and remove the oil pump (Fig. 2.72).
Remove the pump cover to access the gears. Knock out the pin securing the pump drive worm gear. Remove the drive gear, the pump shaft with the pump drive gear assembly, and the driven gear. Remove the piston and the spring of the pressure reducing valve. Wash the pump parts in trichloroethylene and blow them with compressed air. Check the technical condition of the parts and replace the parts. The permissible clearances are specified above. Replace worn parts. The pump gears are replaced in pairs. Lubricate the parts, assemble the pump in the reverse order of disassembly. install a new oil seal, fill the pump with oil and install it in place.