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
Cleaning of the block of the engine
Usually выжимные a stopper it is a lot of years of the engine not exposed to major repairs appear strongly закорродировавшими in the channels. Having rested against stopper edge small выколотку, hammer in edge in the channel, cautiously striking on выколотке a hammer. Hammer in one of edges into the channel so that there was a possibility to grasp for left of the channel opposite самоконтрящимися nippers.
Extraction выжимных stoppers (employees for indemnification of increase in volume of a cooler in case of its freezing) can appear the extremely inconvenient if they were deeply involved inside охладительных channels.
Vyzhimnye stoppers are taken from охладительных channels of the engine by cautious застукивания one of their edges in the channel - thus the second, on the contrary will come to light and it is possible to grasp it nippers.
Scratch out from interfaced surfaces of the block all traces of a material of an old lining. Be careful - try not to damage and not to leave задиров on condensed surfaces.
Remove covers of radical bearings and take loose leaves both from covers, and from beds in the block. Attach to each loose leaf a label with the information on it belongs to what bearing and where has been established - in the block or a cover. Combine loose leaves in a reliable place.
Unscrew from the block all carving заглушки oil galleries. Usually заглушки are tightened very hardly and often they should be drilled with the subsequent restoration of a carving in apertures a tap. At engine assemblage establish new заглушки.
It is necessary to send strongly polluted block in a workshop of car-care centre for carrying out of steam cleaning or жарообработки though at certain patience it is possible to clear qualitatively enough the block and in house conditions.
After block return once again clean all oil galleries. In any shop of autospare parts it is possible to get brushes specially designed for this purpose (ершики). Wash out channels a stream of warm water (washing it is possible to consider finished when will start to follow from the block pure water), then carefully dry the block and slightly oil the processed surfaces for corrosion prevention. In the presence of access to a source of compressed air take advantage of it for drying of the block and a purge of all channels, apertures and galleries.
At work with compressed air put on goggles!
If the block is not strongly polluted and not зашламован, it is enough to wash out its hot water with soap by means of a rigid brush. It is not necessary to be sorry time and forces on carrying out of the given work. Without dependence from the selected method of cleaning, track that all oil apertures and galleries have been cleaned very carefully, the block is completely dried, and its processed surfaces are oiled by a lung for prevention of their corrosion.
All carving apertures should be passed in the block taps of the corresponding sizes for the purpose of removal from them traces of corrosion, old hermetic and restoration of the broken and broken carving. If it is possible, blow apertures the compressed air for removal from them dust and the shaving left a tap (do not forget to dress goggles). Then it is necessary to make cleaning and restoration of a carving of bolts and hairpins of a head of cylinders and covers of radical bearings (take advantage лерками the corresponding sizes).
Establish on the places of a cover of radical bearings and by hand tighten their bolts.
Grease sealing surfaces new выжимных stoppers not stiffening компаундом (such as Permatex № 2) and insert stoppers into apertures in the block. In order to avoid occurrence of leaks, track that stoppers have been inserted perpendicularly and put properly. For the given purpose the special tool is issued, however it is possible to take advantage for landing of stoppers and a replaceable face head of suitable diameter (which should enter accurately a stopper) complete with the extension piece on 1/2 inches (13 mm) and a hammer.
The big replaceable head with the extension piece can be used for installation выжимных stoppers in the block - operate without hurrying up and stop landing a stopper right after that as will achieve its equal installation in the channel заподлицо with a surface of a wall of the block.
Grease carvings new заглушек oil galleries not stiffening компаундом (such as Permatex № 2 or a teflon trumpet sealant) and screw in заглушки in apertures in the block. Track that заглушки have been tightened hardly.
If immediate assemblage of the engine is not planned, wrap the block in the big polyethylene package in order to avoid its pollution at storage.