Vehicle identification For the purchase of spare parts, as well as for the correct repair of the car, it is necessary to identify it. All vehicle information is contained in a 17-digit...
Removal and installation of the engine It is recommended to remove the engine and gearbox (checkpoint) as one unit, i.e. a single whole, and after that to separate the engine from the gearbox. The following...
Engine disassembly Disassembly of the engine is easier when using an assembly stand. Until any dismantling of the engine is started, the external surfaces of the engine must be thoroughly...
Engine assembly In this manual, you will find instructions for assembling the engine step by step. When performing assembly work, pay attention to ensure that the tools, workbench and...
Disassembly of the cylinder head Remove spark plugs. Remove rocker arms with pressure levers. If the rocker arms and camshafts are not renewed, then they must be installed again in the same place and in...
Inspection of cylinder head parts Clean the surface of the cylinder head and check it for scratches and wear. Check whether the coolant separation tubes are firmly seated in the cylinder head; if this is...
Installing the valve guide Machine the oversize valve seat ring until the required overlap is achieved. Heat the cylinder head to about 90°C in a water bath. Cool the valve seat ring and drive in...
Cylinder head assembly Slide the mounting sleeve that comes with the new valve seals onto the valve stem. Lightly grease the new oil seal and push it on by hand. Remove the mounting sleeve....
Checking pistons and connecting rods Clean and check all details. If the parts show signs of chipping, scratches or wear, they must be replaced with new ones. The piston pin seats must be selected in such a...
Cylinder block (crankcase) At each major overhaul, all cavities and channels must be thoroughly cleaned and any residue of old gaskets or sealant must be removed. This applies in particular to oil...
Crankshaft and flywheel Wash the crankshaft in gasoline and check that the oil holes are clean and free. Check necks (pins) supports for deviation from a steep shape and for narrowing. Clamp...
Camshaft and drive mechanism — general information The camshafts of 8-cylinder engines are each located on □ bearings, which come in normal and two repair sizes, so that the camshaft journals can be reground twice. On...
Checking the camshafts Check the axial clearance of the camshafts. Check the camshaft bearings and journals to determine if the weight is within the required limits. Using prisms and a dial...
Checking the valve timing Remove the valve cover and install the brand of the camshaft. The brand is stamped on the rear end of the camshaft. Remove the spark plugs to make it easier to bleed the...
Valve timing adjustment If adjustment of the valve timing is necessary, then it is necessary to install the correct disc spring or a new drive chain. Disc springs are available in the following...
Rocker arm — removal and installation The rocker is always installed in the position in which it was before removal. If the rocker arm is replaced with a new one, then the camshaft must be checked and, if...
Chain tensioner — removal and installation On vehicles with air conditioning, remove the battery and compressor. Unscrew the plug with a 17 mm wrench. It is located on the front right in front of the exhaust...
Engine Specifications Note: Permissible weight difference of pistons for one engine is 4 g, in case of repair up to 10 g. Note: Cylinder bores are serially separated by group number. Group...
Tightening torques for threaded connections Engine 280S and 280SE 380SE and 500SE 350SE and 450SE Cylinder head bolts (hex socket bolts) only with a cold engine 110 60 50 Bolts or nuts for fastening the cylinder...
Cylinder head cover for six-cylinder engine 1 - cover; 2 - sealing gasket; 3 - sealing gaskets for spark plug sockets; 7 - side cover; 8 - tips of spark plug leads; 9 - cover; 10 - bolts; 11 - hose clamp; 12 -...