Jeep Grand Cherokee

1993-1999 of release

Repair and car operation

Jeep Grandee Cheroki
+ Jeep Grand Cherokee brand Cars
+ Settings and routine maintenance
+ Ryadny six-cylinder engine
+ V8 Engine
- Procedures of the general and major maintenance of the engine
   General information
   Major maintenance of the engine - the general information
   Check of kompressionny pressure in cylinders
   The diagnostic checks made by means of the vacuum gage
   Methods of removal of the engine and necessary precautionary measures
   Removal and engine installation
   Options 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
   Assembly of a head of cylinders
   Removal of shatunno-piston assemblies
   Removal of a cranked shaft
   Cleaning of the block of the engine
   Check of a condition of the block of the engine
   Honingovaniye of cylinders
   Check of a condition of shatunno-piston assemblies
   Check of a condition of a cranked shaft
   Check of a condition of radical and shatunny bearings
   Engine assembly order after completion of its major maintenance
   Installation of a cranked shaft and check of gaps of radical bearings
   Installation of piston rings
   Installation of shatunno-piston assemblies and check of gaps in shatunny bearings
   The first start of the engine after major maintenance
+ Systems of cooling, heating and air conditioning
+ the Power supply system and production of the fulfilled gases
+ System of electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of gear shifting
+ Automatic transmission
+ Transfer case
+ Coupling and transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of onboard electric equipment
+ Governing bodies and operation receptions

Dismantling of a head of cylinders

The new or restored heads of cylinders for the majority of types of engines can be got in dealer offices of firms of manufacturers of cars or in car-care center workshops. In a type of need of use of some special tools for dismantle and check of a condition of heads, and also because of inaccessibility of many replaceable components, for the amateur mechanic it can appear more reasonable and cheaper to get at once the restored head (and), than to waste time on dismantling, check of a condition and restoration old (ых).

Dismantling of a head of cylinders demands carrying out removal of inlet and final valves with accompanying components. If yet did not do it, give nuts of yokes, then remove spherical support and yokes from head hairpins. Carefully mark all components, or put them in accurately marked boxes - at assembly all of them should be established on the former places.


  1. Valves put together with components accompanying them so that at assembly it was possible to establish them on former places.
  1. For storage of valves and accompanying they a component can use a plastic bag with the label attached to it is guarantees possibility of installation of components at assembly in the directing plugs.
Inscription on a label - «Inlet, the 3rd cylinder»
  1. By means of the special tool compress a spring of the first valve and remove crackers of the cutting lock (by means of nippers or a magnet). Carefully release the tool and remove a plate of a spring, a spring and its saddle (if it is used).
  2. Take the valve from a head, then remove the directing plug a maslootrazhatelny cap. If the valve is got jammed in the directing plug (does not pass through it), push it back and remove agnails along the edges of a flute under crackers and a core end face by means of a file or a grinding stone.
  1. If the valve does not pass through directing plug, remove agnails from flute edges under crackers and a core end face by means of a thin file.
  1. Repeat procedure for the remained valves. Remember need to put components of each of valves separately.
  2. After removal and warehousing by the correct image of components of the klapanny mechanism the head can be carefully cleared and examined. If work of complete major maintenance of the engine is supposed, previously finish engine dismantling.