Fuel Injection Pump
Injection pumps used on 240 and 300 series diesel engines are similar. See Fig 1. The major difference is the number of pumping elements, five on the 300 series and four on the 240D - one for each cylinder.
Built-in mechanical centrifugal governor has eliminated need for previously-used throttle valve in intake manifold. Engine shut-off is achieved by vacuum control unit. Pumps are lubricated by engine lubrication system. Note oil inlet and outlets. See Fig 1.
An automatic altitude compensating device has been added to governor housing to meet exhaust emission standards at varying altitudes.
Fuel pump, attached to fuel injection pump, is driven by injection pump camshaft and features a hand primer pump.
Injection pumps feature new control levers, full load stop screws and idle adjusting screws. See Fig 2. On the 240D engine, control pressure rod for automatic transmission is connected to end of control lever. See arrow in Fig. 3 .