11 41 000 Removing and installing oil pump Installing oil pump Removing oil pump 8 7 9 1 11 2 10 F110370 E110270 7. Inner rotor 8. Outer rotor 9. Cover 10.Markings 11.Needle roller • Remove circlip (1) from idler gear. • Remove the retaining rings of the oil-pump gears (2) and disengage the oil-pump gears. • Installation is the reverse of the removal proce- dure, pay particular attention to the following. L Note: Markings (5) must be visible. • Oil the inner and outer rotors. • Clean the threads of the countersunk screws and coat with Loctite 243 . 5 6 X Tightening torque: Countersunk screws in oil-pump cover (clean threads + Loctite 243)..........................
6 Nm 3 4 E110280 • Remove idler gear (3). • Remove needle rollers (4). • Remove thrust washers (5). • Remove countersunk screws from cover and lift off cover (6). Inspecting oil pump • Using feeler gauges, measure the clearance be- tween the inner and outer rotors and between the outer rotor and the housing. Permissible face runouts between: Inner rotor and outer rotor...max. 0.25 mm (0.01 in) Installation clearance, radial ...........................................max. 0.25 mm (0.01 in) Axial clearance between rotors and cover................................... 0.25 mm (0.01 in) 11.39