Checking the technical condition and repairing the oil pump drive (VAZ-2105)

Check the ovality of the accessory drive shaft bushings, their press fit in the seats, and the alignment of the lubrication hole in the front bushing with the channel in the cylinder block. Turning the bushings in the cylinder block is not allowed. Measure the diameters of the bushings and shaft and determine the gaps between them. If the gaps are greater than 0.15 mm, and if there is damage to the surface, replace the bushings with new ones. To replace the bushings, use a mandrel (Fig. 36) A.60333/1/2. After pressing the bushings, they are processed with reamers to the dimensions given in table 1. To ensure complete alignment of the bushings, process both bushings at once with the A.90353 reamer.



The auxiliary drive shaft must not have any damage to the bearing journals, and the shaft gear must not have any visually noticeable wear or chipped teeth. The shaft must also be discarded if the bearing journals are worn: the front one to a diameter of 48.01 mm, the rear one to a diameter of 21.94 mm.

Loose pressing and ovality of the bushing of the oil pump drive gear and ignition distributor are not allowed. The inner surface of the bushing must be free of burrs. For pressing in and out, use mandrel 1 (Fig. 37) A.60326/R. After pressing in, expand the bushing to a diameter of 16.016-16.037 mm.