Checking compression in the engine cylinders Objective indicators of the general condition of the engine, indicating the need for an overhaul of the engine with complete disassembly, are the results of measurements of compression in the cylinders and oil pressure....
Oil pressure measurement 1. On a cold engine, unscrew the oil pressure switch and screw in a verified pressure gauge instead. 2. Measure the oil pressure at idle and at the speed indicated in the Technical data (To do this, connect a...
Engine disassembly — general information The order of removal of the engine is considered above in the given Chapter. When disassembling the engine, indicate the order of initial installation and the orientation of the dismantled components, assemblies, wires...
Cylinder head — disassembly 1. Remove rocker arms (rollers with rockers) and distributor. 2. Squeeze with tool (photo) valve spring and remove the crackers. After removing the tool, remove the remaining parts of the valve drive and remove the...
Checking valves Carefully inspect the valves, check for cracks on the chamfers of the valves, traces of uneven wear, metal carryover and burnout. Check for cracks in the necks and stems and for bending of the stems by rolling the valve...
Checking Valve Gear Parts Measure the free length of the spring and the verticality of the springs (photo). Replace shrink springs. Check for visible signs of wear and cracks on the spring plates and crackers (these parts, as a rule, are not...
Stem guides and valve seats Carefully inspect the bushings, check the uniformity of their height. If the protrusion of the sleeve is clearly different, then the sleeve has shifted and its fit is not correct (on aluminum cylinder heads, the valve...
Checking the split plane of the cylinder head The deformation of the split surface of the head is checked with a gauge and a feeler gauge diagonally and along the head along the center line in several places (photo). If the deviation from the plane exceeds 0.076 mm...
Checking the General Condition of the Cylinder Head Carefully inspect the head for cracks and signs of coolant intrusion. If cracks or visible damage are found, replace the head. It is recommended to check for microcracks in a car service using Magnaflux methods...
Restoration of the cylinder head and valve mechanism parts Valves Valves with slight signs of wear should be sanded in a car service, and then lapped. Before lapping, make sure that the cylinder head, valve seats and bushings are in satisfactory condition and do not require...
Cylinder head — assembly 1. Lubricate the valve stems and install them in the cylinder head without disturbing their original installation (if removed valves are installed). 2. Install the support washers. 3. Put on the valve stem seals,...
Cylinder block — disassembly and inspection Removing the bead A collar is formed on the cylinder wall as a result of wear and prevents the removal of the piston with the connecting rod. The bead is removed with a special reamer. Set the piston to BDC. Disassembly...
Checking cylinders, pistons and connecting rods Cylinders The clearance between the cylinder and the piston should be within 0.038-0.0635 mm. Check the surface condition, ovality and taper of the cylinders by measuring the diameter in three planes, in directions...
Cylinder block — repair Repair of the cylinder block, as well as the replacement of pistons, are carried out in a car service. Only honing of cylinders is allowed independently. Pistons On Odyssey models, the pin is pressed into the piston....
Cylinder Block — Assembly Before assembly, clean and check the cylinder block, it is recommended to apply an aerosol composition to the block that protects it from corrosion (e.g. WD-40). Replace all oil port plugs. Crankshaft 1. Install the...
Start-up and running-in of the repaired engine 1. Before starting the engine, check the oil and coolant levels. 2. Start the engine, if after 10 seconds after starting the oil pressure lamp does not go out, then stop the engine. 3. Warm up the engine and check for...