Car engine overhaul Honda Accord 6

General and major engine repairs
This Section 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...

Checking oil pressure
1. A drop in oil pressure can be considered a sign that the engine needs a refurbishment. The oil pressure warning light is not a diagnostic tool for the lubrication system, but only informs the driver of a dangerous...

Checking the compression pressure in the cylinders
The results of the compression pressure test in the cylinders allow us to determine the general condition of the components of the upper part of the engine (pistons, piston rings, valves, cylinder head gaskets, etc.)...

Engine condition diagnostics using a vacuum gauge
Using a vacuum gauge at a relatively low cost allows you to obtain fairly comprehensive information about the internal condition of the engine. Based on the results of the measurements, you can get an idea of the degree...

Removal the power unit from the car — preparation and precautions
Before you begin to dismantle the engine for the purpose of performing a general or major overhaul, there are some preparatory steps that need to be taken. Having a properly equipped work area is extremely important....

Removal and installation the engine
Warning! Remember that gasoline is highly flammable! When working with fuel system components, observe all accepted fire safety measures. Do not smoke, do not approach the work area with an open flame or unprotected...

Alternative options for engine repair schemes
During independent engine overhaul, the reader will face the need to select the most suitable scheme of actions, determining the overall volume and nature of the upcoming work. The need to replace the engine block,...

The procedure for disassembling the engine in preparation for major repairs
The easiest way to disassemble an engine is to install it on a portable mounting stand. This kind of device can always be borrowed relatively inexpensively from a car service workshop. Before securing the engine to the...

Disassembling the cylinder head
Note. A new or reconditioned cylinder head can always be ordered from a car service workshop or from the warehouse of the car manufacturer's branded 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 scope of the upcoming restoration work. Note:...

Valve maintenance
Due to the complexity of the nature of the work and the need to use special equipment, it is best to entrust the maintenance of valves, their guide bushings and seats to car service personnel. The car owner can perform...

Cylinder head assembly
1. Regardless of whether the head was sent to the shop for valve service or not, before proceeding with its assembly, carefully check the cleanliness of all components once again. 2. When the head is returned from the...

Removal and checking the condition of the balance shafts (4-cylinder engines)
Removal 1. Insert a long 6x100 mm bolt (or a long screwdriver of a suitable diameter) into a special hole in the journal of the front balance shaft and, holding the shaft from turning with it, loosen the gear mounting...

Removal connecting rod and piston assemblies
Note: Before removing the connecting rod and piston assemblies from the engine, it is necessary to remove the cylinder head(s), oil pan and oil pump with oil pickup tube. 1. Using a special countersink, completely...

Removal the crankshaft
Note: The crankshaft can only be removed from the engine when it is removed from the vehicle. This assumes 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 main bearing cap bridge and remove the bearing shells from their beds in the caps and block. Mark the shells with tape to match their beds (bearing number, block/cap) and set them aside. 2. Scrape off all...

Checking the condition of the engine block
1. The block must first be thoroughly cleaned (see Section Cleaning the engine block ). 2. Perform an external inspection of the block to detect traces of corrosion, cracks and other damage. Check the condition of the...

Honing of cylinder mirrors
1. Before assembling the engine, honing of the cylinder mirrors is mandatory in order to achieve the correct fit of the piston rings on them, ensuring proper tightness of the combustion chambers. Note: If you do not...

Checking the condition of the connecting rod and piston group components
1. The connecting rod and piston assemblies must be thoroughly cleaned beforehand. The piston rings must be removed. Note: Piston rings must be replaced. 2. Using a special tool, remove the rings from the pistons - try...

Checking the condition of the crankshaft
1. Use a sharpening stone, file or scraper to remove burrs from the edges of the oil holes. 2. Wash the crankshaft with solvent, then dry it thoroughly, using compressed air if possible. Don't forget to clean the oil...

Checking the condition and selecting the liners of the main and connecting rod bearings of the crankshaft
Checking the status Although crankshaft bearings must be replaced during a major engine overhaul, old liners should be kept for careful examination of their condition, the results of which can provide a lot of useful...

Engine assembly procedure
Before you begin assembling the engine, make sure 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) Piston...

Installing piston rings
1. Before installing new piston rings, check the clearances in their locks. It is assumed that the lateral clearances of the rings in the piston grooves have already been checked and comply with the standards (see...

Installing the crankshaft and checking the main bearing clearances
1. Installing the crankshaft is the first step in the actual engine assembly. It is assumed that at this stage the crankshaft and engine block have already been properly cleaned, inspected and reconditioned. 2. Turn the...

Installing the rear crankshaft oil seal
1. Before bolting the holder with the new oil seal installed to the engine, install the crankshaft and main bearing caps/their connecting bridge. 2. Carefully check the surface of the shaft journal that contacts the...

Installing connecting rod and piston assemblies and checking working clearances in the connecting rod bearings of the crankshaft
Preparation 1. Before installing the connecting rod and piston assemblies, the cylinder walls must be carefully wiped, traces of step wear must be completely removed from their upper edges, and the chamfer must be...

Installing balance shafts (four-cylinder engines)
1. Carefully guide the thoroughly cleaned and lubricated balance shafts into the engine block. Be careful not to damage the bearing surfaces. 2. After installing the front balance shaft and bolting its holder, install...

Test run and running-in of the engine after major repairs
Attention! When starting the engine for the first time after its restoration, it is imperative to have a class B fire extinguisher on hand! 1. After installing the power unit on the vehicle, check the engine oil and...

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