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


The first start of the engine after major repairs

At the first start of the engine after its major repairs it is necessary to have near at hand the fire extinguisher.


    After the engine will be established in the car, check up levels of impellent oil and a cooler. At the removed spark plugs and ignition temporarily put out of action (Section Check компрессионного pressure in cylinders) turn the engine for lifting of pressure of the oil confirmed with indications of a measuring instrument or deenergizing of a control lamp. Establish spark plugs, connect to them candle wires and instal ignition system (Section Check компрессионного pressure in cylinders). Start the engine. Some time for pressure lifting in the power supply system can be demanded, however start should not cause especial difficulties.

In case of occurrence of claps in the carburettor or the throttle case, once again check up installations timing and a corner of an advancing of ignition.

    After engine start it is necessary to wait its warming up to normal working temperature. Do not suppose increase in frequency of rotation of the engine above turns of fast idling until will be pumped over and silently hydraulic pushers (about five minutes) will not start to work. While the engine is warmed up, carefully check up it on presence of signs of leaks of fuel, oil and a cooler. If in the course of major repairs the camshaft and pushers have been established new, the engine should work on single turns not less than 15 minutes (watch indications of a measuring instrument of temperature is it is necessary for extra earnings of cams and pushers. Muffle the engine and repeat checks of levels of oil and a cooler. Go on the car to area with weak traffic and disperse it at completely open throttle заслонки from speed of 50 km/h (30 miles/hours) till the speed of 80 km/h (50 miles/ch), then again dump speed to 50 km/h, having closed заслонку (having dumped gas). Repeat procedure 10 - 12 times. It will provide усадку piston rings and to correct their extra earnings to walls of cylinders. Again make sure of absence of leaks of oil and a cooler. The first 800 km (500 miles) run as it is possible check level of impellent oil is more often and try not to disperse the car till high speeds. The moderate expense of oil at обкатке the engine is the normal phenomenon. After approximately 3200 km (2000 miles) run replace impellent oil and the oil filter. The following some hundreds kilometres/miles maintain the car in a usual mode. Do not try to spare the engine, but also do not overload it. After 3200 km (2000 miles) run again replace impellent oil and the oil filter and can consider the engine обкатанным.