Specifications for 4-cylinder engines Engine marking 5S-FE Volume 2.2 liters Compression pressure in cylinders Standard 178 psi Minimum 142 psi Oil pressure (engine hot) At idle 4.3 psi minimum At 3000 rpm 36 – 71 psi cylinder head Maximum allowable...
Specifications for 6-cylinder in-line engines Engine marking 1MZ-FE Volume 3.0 liters Compression pressure in cylinders Standard 218 psi Minimum 145 psi Oil pressure (engine hot) At 3000 rpm 43 – 78 psi At idle 4.3 psi minimum cylinder head Maximum allowable...
Engine overhaul — general notes It is not always easy to come to the conclusion about the feasibility of a complete overhaul of the engine, since it is necessary to be based on a number of objective indicators. High mileage is not a sufficient...
Engine diagnostics with a vacuum gauge Vacuum measurement is a reliable and relatively cheap way to diagnose an engine. According to the readings of the vacuum gauge, you can get an idea of the condition of the piston group, the tightness of the gaskets of...
Engine Overhaul — Alternatives There are a number of options available for a major overhaul. The decision to replace the cylinder block, connecting rod and piston group and crankshaft depends on a number of factors, of which the condition of the...
Removal and installation of the engine Removing 1. Release the pressure in the fuel system. 2. Disconnect the negative battery cable. 3. Remove the battery and battery bracket. 4. Remove the engine hood. 5. Remove the air filter. 6. Raise and secure the...
Engine overhaul 4-cylinder engine - cylinder block elements 1. Piston ring (compression); 2. Piston ring (oil scraper); 3. Piston pin; 4. Connecting rod bushing; 5. Cylinder block; 6. Back plate; 7. Gasket; 8. Rear crankshaft oil seal;...
Cylinder head and valves — bulkhead and assembly Attention! Reassembling and inspecting the cylinder head requires special tools and parts that you may not have. Therefore, if you are an amateur, it will be much more economical to buy a new head than to spend time...
Balancing device (4 cylinder engine) 1. Remove the oil pan, oil pickup tube and oil pump. 2. Unscrew the balancing device bolts in the sequence shown. 3. Remove the balancing device.
Pistons and connecting rods — removal and inspection Removing 1. For four-cylinder engines, remove the engine balancer. 2. Using a special tool, remove the ledge in the upper part of the cylinder, formed as a result of wear and deposits of combustion products. Do not...
Crankshaft — removal and inspection The sequence of tightening the bolts of the main bearing caps (6-cylinder engines) The sequence of tightening the side bolts of the main bearing caps (6-cylinder engines) Removing 1. Before removing the crankshaft,...
Cylinder block — cleaning and checking Cleaning 1. Rotate the plugs in the holes by hitting the side of each plug with a blunt rod. 2. Remove the plastic plugs with pliers. 3. The 6-cylinder engine has metal plates instead of plastic plugs. 4. Using a...
Cylinder honing To honing cylinders, you will need a special abrasive tool. After honing, the cylinder walls should be left with a pattern of cross lines intersecting at an angle of approximately 60°. This procedure requires special...
Main bearings and connecting rod bearings Reasons for bearing wear 1. Reducing the tensile strength of the metal; jagged scratches 2. Improperly planted; bright (polished) stripes 3.Scratched by dirt; dirt has penetrated the surface 4. Lack of oil; worn top...
Measuring the amount of free play of the balancing device Engine balancer 1. Shaft N1; 2. The lower part of the casing of the shafts; 3. Shaft N2; 4. Shaft bearing shells; 5. Upper casing The balancing device consists of two shafts enclosed in an aluminum casing. The shafts...
Piston rings — installation 1. Before installation, it is necessary to check the end and side clearances of the piston rings. 2. Install the top compression ring into the cylinder using the piston. 3. Measure the ring end clearance. If the gap is...
Crankshaft main bearings — installation The sequence of tightening the bolts of the main bearing caps (4-cylinder engines) Bolt tightening sequence for main bearing caps (6-cylinder engines) The sequence of tightening the side bolts of the main bearing caps...
Rear crankshaft oil seal — installation 1. Knock out the old seal from the casing. 2. Press in a new seal. 3. Lubricate the oil seal with multipurpose grease and install on the crankshaft. Insert and tighten the packing box bolts to the correct torque.
Connecting rod bearings — inspection and installation Checking the lubrication clearance of connecting rod bearings Location of piston ring end gaps (4 cylinder engine) 1. Top compression ring; 2. Deepening (towards the front of the engine); 3. Lower oil scraper ring; 4....
Installing an engine balancer 1. Clean the surfaces of the cylinder block and balancing device, install the gaskets. 2. Set the first piston to top dead center. 3. Align marks (grooves) on shafts with corresponding slots in the shaft casing. 4....
Starting and checking the engine after overhaul Is everything okay with the car engine? Maybe it's time to save money for computer diagnostics, and even for repairs? A few tips from an auto engineer who has been repairing imported cars for many years will help you...
Exhaust smoke analysis A diagnostic examination would be incomplete without an analysis of the car's exhaust smoke. He is already warm enough, so it's time to go to his "loin" and look at the horse "down the drain". The exhaust of a...
Toothed belt for driving the timing mechanism Today, toothed belts have found "second wind". Almost all automakers equip their cars with an elastic drive. The German designers went even further. They widely apply double toothed belt (Duplex) as a reliable...
The appearance of sediment in the oil The simplified formula for an engine lubrication system that ensures durability and its economical operation is: Pressure, Level and Quality! First, pressure. Everyone is well aware that the oil pressure in the engine...
Engine overheating — the most common causes Many drivers are faced with the need for expensive repairs, although it could have been avoided by paying attention to the first signs of an impending breakdown in a timely manner. The most characteristic example of...