General and overhaul of the engine This Part of the Chapter contains descriptions of the procedures for removing and installing the power unit, as well as general overhaul of the cylinder head and internal engine components. The material offered to the...
Oil pressure check 1. A drop in oil pressure can be seen as a sign that the engine is in need of a rebuild. The oil pressure warning light is not a tool for diagnosing the lubrication system, but only informs the driver about a dangerous...
Checking the compression pressure in the cylinders Cylinder compression test results provide an indication of the overall condition of the top of the engine components (pistons, piston rings, valves, cylinder head gaskets, etc.) and qualitatively assess the degree of...
Diagnostics of the engine condition using a vacuum gauge The use of a vacuum gauge at a relatively low cost allows you to get enough capacious information about the internal state of the engine. Based on the results of the measurements, it is possible to get an idea of the...
Removing the power unit from the vehicle — preparation and precautions Before proceeding with the dismantling of the engine in order to carry out its general or major repairs, it is necessary to take some preparatory steps. Having a well-equipped work site is extremely important. The site...
Removal and installation of the engine Warning! Do not forget that gasoline is a highly flammable liquid! Observe all applicable fire safety precautions when working on power system components. Do not smoke, do not approach the work area with an open flame...
Alternative options for engine reconditioning schemes During the independent overhaul of the engine, the reader will be faced with the need to choose the most appropriate scheme of actions for him, which determines the total volume and nature of the work to be done. The...
Disassembly of the cylinder head Note. A new or remanufactured cylinder head can always be ordered at a car service workshop or at the warehouse of the car manufacturer's company service center. Due to the need to use some special tools during...
Cleaning and checking the condition of the cylinder head Cleaning 1. A thorough cleaning of the cylinder head and valve train components, followed by a detailed inspection of their condition, will help determine the approximate amount of restoration work to be done. Note....
Valve maintenance Due to the complexity of the nature of the work and the need to use special equipment, it would be best to entrust the maintenance of valves, their guide bushings and seats to the car service personnel. The owner of the...
Cylinder head assembly 1. Regardless of whether the head was sent to the workshop for valve service or not, before assembling it, carefully check the cleanliness of all components again. 2. When the head is returned from the workshop, the...
Removal and check of a condition of balancing shafts (4-cylinder engines) Withdrawal 1. Thread a long bolt 6x100mm (or a long screwdriver of suitable diameter) into a special hole in the trunnion of the front balancing shaft and, using it to keep the shaft from turning, give the gear wheel...
Removal of connecting rod and piston assemblies Note. Before proceeding with the removal of connecting rod and piston assemblies from the engine, it is necessary to remove the head (And) cylinders, oil pan and oil pump with oil pickup tube. 1. Completely remove...
Removing the crankshaft Note. Removal of a cranked shaft is possible only from the engine taken out from the car. It is understood that the flywheel/drive plate, timing belt, oil pan, oil pickup, oil pump and connecting rod and piston...
Cleaning the engine block 1. Remove the bridge of the main bearing caps and remove the bearing shells from your beds in the caps and block. Mark liners with tape to match your bed (bearing no. block/cap) and put them aside. 2. Scrape off any...
Checking the condition of the engine block 1. The block must be thoroughly cleaned beforehand (see Section Cleaning the engine block ). 2. Perform an external inspection of the unit for signs of corrosion, cracks and other damage. Check the thread condition of...
Honing cylinder mirrors 1. Before assembling the engine, it is mandatory to honing the cylinder mirrors in order to achieve the correct fit of the piston rings on them, which ensures proper tightness of the combustion chambers. Note. If you do...
Checking the condition of the crankshaft 1. Use a whetstone, file or scraper to remove burrs from the edges of the oil holes. 2. Wash the crankshaft with solvent, then dry thoroughly using compressed air if possible. Don't forget to clean the oil holes with a...
Engine assembly procedure Before assembling the engine, make sure that you have all the necessary parts, materials and tools, which include the following: a) Standard set of locksmith tools; b) Torque wrench with 1/2-inch drive; c) Tool for...
Installation of piston rings 1. Before installing new piston rings, check the gaps in their locks. It is understood that the side clearances of the rings in the piston grooves have already been checked and comply with the standards (see Section...
Installation of a back epiploon of a cranked shaft 1. Before bolting the holder to the engine with a new oil seal installed in it, reinstall the crankshaft and main bearing caps / their connecting bridge. 2. Carefully inspect the seal-to-gland surface of the shaft stud...
Installation of balancing shafts (four-cylinder engines) 1. Gently guiding, place the thoroughly wiped and lubricated balance shafts into the engine block. Be careful not to damage the bearing surfaces. 2. Having installed the front balancing shaft and bolted its holder,...
Trial run and running-in of the engine after overhaul Attention! When starting the engine for the first time after the completion of its refurbishment, it is imperative to have a class B fire extinguisher at hand! 1. After installing the power unit on the car, check the...