Diesel injection system — general information If a gasoline engine is supplied with an air-fuel mixture, which is subsequently ignited by a spark plug, then in a diesel engine this occurs under the influence of high...
Basic elements of the electronic diesel system (EDS) Pic. 4.69. Control block Control block (pic. 4.69) mounted on the right side of the unit. It performs the following functions: providing the required amount of fuel,...
Engine operating modes Start . Regardless of the position of the accelerator pedal, but depending on the temperature, the engine receives a different amount of fuel when starting. From 600 min...
Idle system Pneumatic Idle Speed Boost System Pic. 4.73. Diagram of vacuum lines and valves: 1 - control module for the operation of the air conditioner compressor; 2 - switching...
Soft Shift System (ARA) This system is installed on vehicles with a manual transmission. The solenoid on the injection pump at the right time minimizes the supply of fuel, thereby preventing...
Variable length intake manifold The 6-cylinder engine on the E 300 Diesel has a variable length intake manifold. With the help of two movable dampers in the suction system, it is possible to change the...
Nozzles — general description The injectors are installed at the top of the cylinder head and are designed to supply fuel to the cylinder (prechamber). The nozzle needle rises at a pressure in the...
Turbocharger — description and maintenance The turbocharger is flanged to the exhaust manifold and intake system. Pic. 4.75. Turbocharger in section (290TD): 1 - turbine; 2 - shaft; 3 - oil channel; 4 -...
Engine shutdown Engine stop valve (injection pump of distribution type) The shutdown valve on the injection pump is used to stop the engine. It consists of a magnetic core with a tight...
Maintenance of the injection system Most of the work related to the repair and maintenance of the injection system should be carried out by specialists at the service station. The necessary diagnostic...
Removing nozzles Sequence of work 1. Remove the cross suction air line and nozzle cover. Pic. 4.80. Nozzle location: 1 - nozzle; 2 - union fitting; 3 - pipeline for supplying fuel to the...
Disassembly of nozzles When disassembling, pay attention to the shims, which set the same injection pressure for stable engine operation. This adjustment somewhat complicates the repair,...
Accelerator pedal drive If the pedal is just «sticks», lubricate and «move out» her. Be sure to lubricate the pedal shaft and drive after every engine wash. Have the fuel control adjustment and...