Jeep Grand Cherokee

1993-1999 of release

Repair and car operation

Jeep Grand Cherokee
+ Cars of mark Jeep Grand Cherokee
+ Options and routine maintenance
+ Рядный the six-cylinder engine
+ Engine V8
- Procedure of the general and engine major repairs
   The general information
   Engine major repairs - the general information
   Check компрессионного pressure in cylinders
   The diagnostic checks made by means of the vacuum gauge
   Methods of removal of the engine and necessary safety measures
   Removal and engine installation
   Variants of restoration of the engine
   Order of dismantling of the engine
   Dismantling of a head of cylinders
   Cleaning and check of a condition of a head of cylinders
   Service of valves
   Assemblage of a head of cylinders
   Removal of shatunno-piston assemblages
   Removal of a cranked shaft
   Cleaning of the block of the engine
   Check of a condition of the block of the engine
   Хонингование cylinders
   Check of a condition of shatunno-piston assemblages
   Check of a condition of a cranked shaft
   Check of a condition radical and шатунных bearings
   Assembly order of the engine after end of its major repairs
   Installation of a cranked shaft and check of backlashes of radical bearings
   Installation of piston rings
   Installation of shatunno-piston assemblages and check of backlashes in шатунных bearings
   The first start of the engine after major repairs
+ Systems of cooling, heating and air conditioning
+ The power supply system and release of the fulfilled gases
+ System of an electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of a gear change
+ Automatic transmission
+ Distributing box
+ Coupling and трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of an onboard electric equipment
+ Controls and operation receptions


Variants of restoration of the engine

At independent performance of procedures of major repairs of the engine the mechanic-fan will face realisation possibility in its several various ways. The first of criteria on which necessity of carrying out of replacement of the block of the engine is defined, shatunno-piston assemblages and a cranked shaft is the condition of the block of cylinders. Material inputs, access presence concern number of other factors to станочному to park, definition of the list of necessary spare parts and possibility of their acquisition. Besides, necessary conditions are presence of a free time and experience of independent performance of mechanical works.

Cost of carrying out listed below alternatives of major repairs of the engine can vary depending on quality of got spare parts, extensiveness of a spectrum of necessary machining and procedures of the special tool required for qualitative performance and the equipment. Many automobile repair shops in addition to repair of separate components undertake performance of full assemblage of the engine (with installation of the full or reduced set). Consult in the nearest repair trucks about a spectrum of works carried out by them and the prices for them.

The main things from variants of restoration of the engine are:

Replacement of separate components - If the preliminary analysis of a condition of the engine has shown that the block of cylinders and the most part of components of the engine are found in a suitable condition for the further application, acquisition and installation of only separate defective components can be the most reasonable and economical way out. Thus conditions of the block, a cranked shaft and shatunno-piston assemblages should be checked up very carefully. Even at insignificant degree of deterioration of the block without fail it is necessary to make хонингование cylinders.

Installation of the reduced set of the block - the Reduced set consists of the engine block complete with cranked shaft and shatunno-piston assemblages. All new bearings should be thus established and all backlashes are exposed. On such block after insignificant (if it is required) machining the camshaft, components клапанного the mechanism, a head () cylinders and hinged units are established old.

Installation of a totality of the block - the Full set includes the reduced set, plus the oil pump, the pallet картера, a head () cylinders, a cover () heads, a camshaft and components клапанного the mechanism, distributive asterisks with a chain or a gear wheel and a drive cover газораспределительного the mechanism (chain). All components are established with new bearings, epiploons and linings and everything that it is required to make, it to establish the inlet pipeline, a final collector () and hinged units.

Carefully weigh all pro and contra at a choice of a variant of restoration of the engine, consult in a local workshop of car-care centre or dealer branch and only then start purchase of necessary spare parts.