2.1.1.5. Bent shaft and radical bearing

Fig. 2.8. Crankshafts of engines of the L8, LF and L3 models: 1 – leading gear wheel

Crankshafts of engines of the L8 and LF models – pig-iron 5-basic with 4 counterbalances. The L3 model engine crankshaft – pig-iron 5-basic with 8 counterbalances. The leading gear wheel of the drive of a balancing shaft is established on cranked to a shaft. The usual adjusting spline is not applied, the effort of an inhaling of bolts of a pulley of a bent shaft provides fixing of an asterisk of a bent shaft. At installation of an asterisk of a bent shaft it is necessary to use the special device for the VMT installation of the first cylinder (fig. 2.8).

Fig. 2.9. Masloprovodny channels of a bent shaft: 1 – the channel for lubricant; 2 – galtel

The oil pipeline for supply of oil is located to radical necks of a bent shaft in cranked to a shaft. Necks and galtel of necks of a bent shaft are strengthened by a nakatka for improvement of load characteristics.

Fig. 2.10. Top and lower inserts and radical bearing: 1 – bolt of fastening of a head of the cylinder; 2 – party of release; 3 – party of an admission; 4 – forward part of the engine; 5 – a corner between two valves; 6 – inlet channel; 7 – inlet channel

The top and lower inserts of radical bearings are made of aluminum alloy. The top insert of the bearing No. 3 - persistent. The top inserts have lubricant flutes and oil channels. Adjusting ledges of the top and lower inserts are absent. Before installation of the top and lower inserts of radical bearings it is necessary to measure them and to establish them so that they settled down on the center of a cover of the bearing (fig. 2.10).