Power supply and exhaust system for engines Mercedes Vito 2 (W639)
Functional diagram of the air supply system Air supply system (functional diagram, the placement of elements is shown conditionally) VN 2.108 1. Intake manifold 2. Exhaust manifold 3. Turbocharger 4. Air cooler 5....
Turbocharger — purpose, control Purpose The supply of additional air to the engine cylinders using the energy of the exhaust gases. Turbocharger boost pressure control with fixed gas turbine geometry....
Removing and installing turbocharger VN 2.111 1. Air hose 4. Vacuum hose 5. Screws Tightening torques for threaded connections Fastening the flange connection of the exhaust pipe to the turbocharger - 30 Nm...
Elements of the air supply system The figures in this subsection show the elements of the air supply system. Figure captions indicate options (codes) engine configuration, if this element is used only in...
High pressure circuit In the high pressure circuit, fuel is supplied to the high pressure fuel manifold (further -TKVD), from where, with the help of high-pressure pipes, it is supplied to...
High pressure fuel pump VN 2.120 1. injection pump (M41) 2. Fuel quantity control valve (Y94) 3. Fuel temperature sensor (B50) 4. High pressure fuel line VN 2.121 injection pump. Placement and...
HPFP drive VN 2.124 Removal and installation of a chain wheel of a fuel pump drive 1. High pressure pump drive sprocket 2. Sleeve 3. Screw 4. injection pump 5. Exhaust camshaft...
High pressure fuel manifold (TKVD) Purpose TKVD is designed to accumulate fuel under high pressure developed by high pressure fuel pump, distribute fuel to injectors and maintain the required fuel...
High pressure fuel lines Removal and installation 1. Loosen the nuts securing the high-pressure pipes on the nozzle and distributor, holding the threaded inserts of the nozzles from turning....
Pressure control valve in TKVD Purpose Pressure control valve in TKVD (Y74) maintains pressure at the level set by the engine control unit (A53). Accommodation The pressure control valve in the TKVD...
Fuel injectors Purpose The nozzles are designed to inject atomized fuel into the combustion chamber with the most advantageous shape «torches» spraying. Design VN 2.128 1. Electrical...
Exhaust gas exhaust system Below are the elements of the exhaust system for vehicles of various types of equipment. The main sign of pressure in terms of the design of the exhaust system: the...