General information about engine repair This Part of Chapter 2 includes general repair techniques for the cylinder head and other engine components. The information concerns the sequence of preparation for repair and the acquisition of replacement parts, a...
Specifications of engine elements Total information Working volume - see Part A Number of cylinders - see Part A Work order - 1 - 3 - 4 - 2 Engine identification (first 3 or 5 positions in the serial number) EW1 - 1500 carburetor EV1 - 1300 carburetor...
Engine repair — general information It is not always easy to determine what and where in the engine needs repair: there are too many factors to take into account. High engine mileage is not always a prerequisite for repair, and vice versa - low mileage...
Compression pressure control («compression») 1. Compression will tell you about the condition of pistons, rings, valves and head gaskets: large leaks indicate wear or damage to these parts. Note: When measuring compression, the engine must be fully warmed up and...
Engine Removal — Methods and Safety If you decide to remove the engine for repair, then some preparations must be made. Site selection is critical to providing space for service and spare parts storage. It is advisable to do this at the station or in a...
Engine — removal and installation Note: Read the entire section first. The engine and gearbox are removed as an assembly. Removing the gearbox is carried out outside the car. Withdrawal 1. On models with fuel injection, relieve fuel pressure in the...
Alternative engine rebuild During the repair process, you can make a fairly large number of alternative solutions. The decision to replace the block, the piston / connecting rod assembly, the crankshaft depends on many factors, of which the...
Engine Repair — Disassembly Sequence 1. Installing the engine on the stand greatly facilitates the assembly and disassembly processes. Remove the flywheel and rear oil seal before installing the engine on the stand. 2. In the absence of a stand,...
Cylinder head — disassembly 1. Disassembly of the head begins with the removal of the intake and exhaust valves and related parts. To do this, remove the additional valves (if installed), rocker axle assembly and camshaft. Detailed information on...
Cylinder head — cleaning and inspection When cleaning the cylinder head and valve train parts, carefully inspect them to decide on the amount of service work. Note: If the engine has been overheated, there is a high chance of warping the head (see step 12)....
Valves — maintenance Since for the production of this type of work (repair of valves, seats and guides) requires a set of skills and a special tool - it is better to contact professionals.
Cylinder head — assembly 1. Make sure all parts needed for assembly are present and clean. 2. If the valves are already installed, go directly to step 8. 3. Install spring seats on guide, install new seals on each valve guide. Keep in mind that...
Piston / connecting rod — dismantling Note: Before removing the piston/connecting rod assembly, remove the cylinder head and oil pan. The necessary information is contained in Part A of Chapter 2. 1. Use your finger to check for a protrusion at the stop...
Crankshaft — dismantling Note: The crankshaft can only be removed from the engine outside the vehicle. The flywheel, rear oil seal housing, crankshaft pulley, drive belt and gear, pipe, piston group must also be dismantled. 1. Before removing...
Engine Block — Cleaning Attention: block plugs, if they fall into the cooling jacket, will be almost impossible to remove. 1. Remove all protruding parts from the block. 2. Drill small holes in the center of the plug and pull them out with an...
Engine Block — Inspection 1. Before starting the inspection, complete the work of item 14. 2. Determine the presence of cracks, corrosion, deposits. Check the condition of the thread. If the defects found are beyond repair. Replace block. 3....
Cylinder wall honing 1. Wall honing creates good conditions for the operation of piston rings, so we recommend this type of processing. 2. Reinstall the main bearing caps and tighten to specification. 3. The most common hone with spring...
Piston/Connecting Rod — Inspection 1. Before inspection, wash the parts and remove the piston rings. Note: Use new rings for assembly. 2. When dismantling the rings, be careful not to damage the piston surfaces. 3. Free the piston head from carbon...
Crankshaft — inspection 1. Wash and dry the crankshaft. Clean the oil passage holes with a stiff brush and flush with solvent. Pic. 18.1 Clean the oil passages with a wire brush and flush them 2. Check the main and connecting rod journals for...
Main and connecting rod bearings — inspection and rejection 1. Even if you decide to replace the bearings with new ones, old bearings should be seriously analyzed, as they can give a lot of information about the condition of the engine. Pic. 19.1 Typical pictures of bearing...
Engine Repair — Assembly Sequence 1. Before assembling the engine, make sure that all necessary parts are available. gaskets and seals and the following accessories. set of universal keys knob with square 12.7 mm mandrel for rings ring puller vibration...
Piston rings — installation 1. Before installing the rings, check the side clearances in the ring/piston groove pair (see point 17) 2. The method of measuring the gaps in the lock of the rings is described below. 3. Insert the ring into the...
Crankshaft — installing and checking bearing clearance 1. Installing the shaft is the first step in assembling the engine. Make sure the block and shaft are clean. 2. Lay the block with the crankshaft bed up. 3. Remove the main bearing caps, arrange them side by side in a...
Installing the rear oil seal 1. Before installing the rear oil seal, make sure that the crankshaft mounting operations are completed. 2. Re-check the contact surface of the shaft journal for scratches and burrs that could damage the sealing lip of...
First engine start after repair 1. After installing the engine on the vehicle, fill in oil and coolant. 2. With the ignition system off and the candles removed ( see section 3 ) crank the engine until oil pressure appears in the system. 3. Install the...