Car engine repair Opel Astra G

General and major engine repairs
This Section contains descriptions of the procedures for removing and installing the power unit, as well as general overhaul of the cylinder head and internal...

Removal the power unit from the car — methods and precautions
Before you begin removing the power unit from the vehicle, perform some preparatory procedures. It is extremely important to have a well-equipped work area...

Removal, disconnecting and installing the engine
Removal It should not be forgotten that fuel is a highly flammable liquid! When working with components of the fuel system, observe all accepted fire safety...

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...

Engine disassembly sequence
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...

Disassembling the cylinder head
A new or refurbished head can be ordered at an Opel service station or from the manufacturer's warehouse. Due to the fact that disassembling and checking the...

Cleaning and checking the condition of the cylinder head
A thorough cleaning of the cylinder head and valve train components followed by a detailed inspection of their condition will help determine the approximate...

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...

Removal connecting rod and piston assemblies
Before proceeding to extract the connecting rod and piston assemblies from the engine, it is necessary to remove the cylinder head, oil pan and oil pickup...

Removal the crankshaft
The crankshaft can only be removed from the engine that has been removed from the vehicle. This means that the flywheel/drive plate, crankshaft pulley, timing...

Cleaning and checking the condition of the cylinder block
Cleaning 1. Remove all externally mounted components and sensors from the unit. 2. Using a blunt punch, press the edge of the release plug and turn it in its...

Honing of cylinder mirrors
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...

Checking the condition of the connecting rod and piston group components
All engines The connecting rod and piston assemblies must be thoroughly cleaned beforehand. The piston rings must be removed. Piston rings must be replaced...

Checking the condition of the crankshaft
Measuring the radial runout of the crankshaft 1. Use a sharpening stone, file or scraper to remove burrs from the edges of the oil holes. 2. Wash the...

Checking the condition of the main and connecting rod bearings of the crankshaft
Typical examples of bearing wear Fatigue deformation The arrows indicate pockets and caverns Incorrect landing Arrows indicate areas polished to a shine Dirt...

Engine assembly procedure
Before you begin assembling the engine, make sure you have all the necessary parts, materials and tools, which include the following: Standard set of locksmith...

Installing piston rings
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...

Installing the crankshaft and checking the main bearing clearances
It is recommended to replace the main bearing shells regardless of their condition. 1. Installing the crankshaft is the first step in the actual engine...

Installation of connecting rod and piston assemblies and checking the size of working clearances in the connecting rod bearings of the crankshaft
When performing a major overhaul of the engine, it is recommended to replace the piston wheels and connecting rod bearing liners regardless of their condition....

Test run and running-in of the engine after major repairs
When starting the engine for the first time after completing its repair, it is imperative to have a class B fire extinguisher on hand! After installing the...

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