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
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
+ System of an onboard electric equipment
+ Controls and operation receptions
Before starting engine assemblage it is necessary to make хонингование cylinders which is required for maintenance of correct landing of new piston rings and a guarantee of due hermetic sealing of chambers of combustion in the course of engine work.
In case of absence of the necessary tool or desire of independent performance of work, it is possible to address in any workshop of car-care centre where хонингование cylinders it will be executed for quite reasonable payment.
- Before starting to хонингованию cylinders establish on the places of a cover of radical bearings and tighten bolts of their fastening with demanded effort.
- Are issued хоны two types - flexible хон, outwardly similar on ершик for washing of bottles and, more traditional хон for processing of mirrors of the cylinders, equipped подпружиненными by grinding stones. Both types equally well approach for performance of the forthcoming procedure, however the first is easier in circulation and at independent performance хонингования the mechanic-fan is recommended to use it. Except хона enough of kerosene or хонинговочного oils, rags and an electrodrill is required also. Procedure performance is made in a following order:
- Clamp хон in a drill cartridge, compress stones and enter хон into the first cylinder. Do not forget to put on goggles or an obverse guard!
||In the absence of experience of independent performance хонингования due result to achieve at use flexible хона type «bottle ершик» easier.
- Plentifully grease the cylinder хонинговочным with oil, include a drill and begin movement хоном upwards-downwards in the cylinder with such step that left on a mirror of the cylinder the pattern looked like a uniform grid. In an ideal of a line of a grid should be crossed at an angle in 60 °. Do not feel sorry some greasing and do not remove more material, than it is really necessary for achievement of desirable polishing of a mirror.
Manufacturers of piston rings can demand maintenance of a smaller corner of crossing of strips left хоном on walls of cylinders of a pattern - adhere in this question of the instructions offered complete with a set of rings.
Хон should leave on cylinder walls the equal mesh pattern which lines are crossed at an angle approximately in 60 °.
- Do not take хон from the cylinder to a full stop of a cartridge of a drill. Instead continue movement хона in the cylinder upwards-down to its full stop, then compress stones and take хон. In case of using flexible хоном stop a drill, then, manually rotating a cartridge in a normal direction, take хон from the cylinder.
- Wipe a mirror of the cylinder and repeat procedure for the remained cylinders.
- After end хонингования remove with the help надфиля a facet on an upper edge of each of cylinders that is necessary for prevention of hooks of rings for a sharp edge at introduction of pistons in cylinders. Observe extreme care - try not to damage the end надфиля a mirror of cylinders.
- The engine block should be washed carefully out again warm water with soap for removal of traces of the abrasive which has remained after carrying out хонингования of cylinders.
It is possible to consider walls of cylinders pure when after wiping by their piece white неворсящейся to rags (moistened with pure impellent oil) on it does not remain the traces of an abrasive shown in the form of a stain of grey colour. Clean all oil apertures and galleries a special brush (ершиком) and wash out their stream of water.
- After ополаскивания dry the block and oil all processed surfaces a lung in order to avoid corrosion development. Wrap the block in the big polyethylene package and postpone it till the moment of the beginning of assemblage of the engine.