Jeep Grand Cherokee

1993-1999 of release

Repair and operation of the car

Jeep Grand Cherokee
+ Cars of the Jeep Grand Cherokee brand
+ Settings and routine maintenance
+ Line six-cylinder engine
+ V8 engine
- Procedures of the general and capital repairs of the engine
   General information
   Capital repairs of the engine - the general information
   Check of compression 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 installation of the engine
   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 conrod and piston assemblies
   Removal of a bent 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 conrod and piston assemblies
   Check of a condition of a bent shaft
   Check of a condition of radical and conrod bearings
   Engine assembly order after completion of its capital repairs
   Installation of a bent shaft and check of gaps of radical bearings
   Installation of piston rings
   Installation of conrod and piston assemblies and check of gaps in conrod bearings
   The first start of the engine after capital repairs
+ Cooling systems, heating and air conditioning
+ A 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 methods of operation

Dismantling of a head of cylinders

The new or restored heads of cylinders for the majority of types of engines can usually be got in dealer offices of firms of manufacturers of cars or in workshops of car service. 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 can be more reasonable and cheaper to get at once the restored head (i), than to spend time for dismantling, check of a state and restoration of old.

Dismantling of a head of cylinders demands carrying out removal of inlet and final valves with the accompanying components. If did not do it yet, 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 have to be established on the former places.


  1. Put valves together with the components accompanying them so that at assembly they could be established on former places.
  1. For storage of valves and accompanying them a component it is possible to use a plastic bag with the label attached to it - it guarantees a possibility of installation of components at assembly in the guides of the plug.
Inscription on a label - "Inlet, the 3rd cylinder"
  1. By means of the special tool squeeze 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 springs, 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 at 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 the directing plug, remove agnails from edges of a flute under crackers and a core end face by means of a thin file.
  1. Repeat the procedure for the remained valves. You remember need to put components of each of valves separately.
  2. After removal and warehousing correctly of components of the valvate mechanism the head can be carefully cleared and examined. If performing complete capital repairs of the engine is supposed, previously finish dismantling of the engine.