Car engine overhaul Chevy Trailblazer 1

Engine Overhaul — Specifications
4.2L inline 6-cylinder engine Total information Working volume - 4.2 l Compression ratio - 10:1 Compression in cylinders Minimum - 10.2 atm Normal - 14.6 atm...

General information — engine overhaul
This part of Chapter 2 describes diagnostic procedures, during which the general technical condition of the engine is determined. Recommendations are also...

Checking oil pressure
1. A decrease in the operating oil pressure in the engine may indicate the need for major repairs. The emergency oil pressure indicator is not a diagnostic...

Checking compression in engine cylinders and diagnosing with measuring the degree of vacuum
Compression check 1. The results of compression measurements will help determine the technical condition of engine parts (pistons, rings, valves, cylinder head...

TDC position of the first piston — location
1. Top dead center (TDC) - the highest point in the cylinder that the piston reaches when the crankshaft rotates. Each piston reaches TDC on both the...

Alternative Engine Rebuilding Methods
A car owner who carries out repairs on his own is faced with many options for engine restoration. The decision to replace the cylinder block, connecting rod...

Removing the Engine — Methods and Precautions
If you plan to remove the engine for major repairs, take precautions. Choosing a suitable place to work is extremely important. In addition to space for the...

Engine — removal and installation
Warning 1: The air conditioning system is under high pressure. Do not loosen couplings or remove components without first discharging the system when...

Engine overhaul — disassembly sequence
1. It is much easier to work with the engine and remove elements if it is installed on a portable stand. This stand can be rented. Before mounting the engine...

Pistons and connecting rods — removal and installation
Removal Note: before removing parts of the connecting rod and piston group, it is necessary to dismantle the cylinder head and pan ( see chapter 2A ). 1. Using...

Crankshaft — removal and installation
Removal Note: Removal of the crankshaft is only possible after dismantling the engine. In this case, you must first remove the drive disk, crankshaft pulley,...

Engine overhaul — assembly sequence
1. Before starting assembly, make sure you have the necessary spare parts, gaskets and seals. To carry out the procedure, you also need the following: Set of...

First start and run-in of the engine after a major overhaul
Warning: When starting the engine for the first time after a major overhaul, keep a fire extinguisher ready. 1. After installing the engine in the car, check...

Terms and concepts that are used during engine overhaul
Treadmill (bearing) - the inner or outer ring of a bearing on which balls or rollers roll. Runout - amplitude of deviation of the shaft shank from the axis....