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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Jeep Grand Cherokee (from 1993 to 1999, the year of issue)

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Jeep Grand Cherokee
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Jeep
Grand Cherokee
Introduction
Adjustment and routine maintenance
The straight six-cylinder engine
The V8 engine
Procedure of the general and engine major repairs
general information
Overhaul of the engine - the general information
Check the compression pressure in the cylinders
Diagnostic Tests produced using gauge
Methods for removal of the engine and the necessary precautions
Removing and installing engine
Recovery Options Engine
An order of dismantling of the engine
Dismantling of a head of cylinders
Cleaning and checking the status of a head of cylinders
Service valves
Assembling the cylinder head
Removing the connecting rod and piston assembly
Removing the crankshaft
Cleaning the engine block
Checking the engine block
Honing cylinders
Checking the connecting rod and piston assembly
Checking the status of the crankshaft
:20. Checking the main and connecting rod bearings
The order of assembly of the engine after completing its overhaul
Installation of a cranked shaft and check of backlashes of radical bearings
Installation of the piston rings
Installing the connecting rod and piston assembly and check of backlashes in the connecting rod bearing
The first start of the engine after major repairs
Systems of cooling, heating and air conditioning
The power supply system and exhaust
The system of electric motor
Systems of decrease in toxicity of the fulfilled gases and engine management
Manual box of a gear change
Automatic Transmission
Transfer Case
Clutch and transmission line
Brakes
Suspension and steering
Body
The system of on-board electrical equipment
Controls and operation receptions
 


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Assembling the cylinder head



Regardless of whether to send the head of the workshop for the valve works or not, before reassembly ensure its absolute purity.

PERFORMANCE ORDER

  1. If the service is the valve in the workshop, all components have to be installed in its place. In this case, begin the assembly of the procedure p.
  2. Set the guides of each of the intake valves new valve stem seal. Gently pull each of the caps on the sleeve to complete its landing. Avoid twisting and turning of the cap during the installation process, as in this case, they will not provide adequate sealing on the valve stem. Caps can be installed on the sleeve by means of deep and small replaceable head mallets, but not overboard. Caps umbrella type a stretch on the sleeve exhaust valves.

Please note that the caps of inlet valves differ from the final - do not confuse them.

  1. On the intake valve stem seals for landing on a ledge of the cylinder head, use a deep removable head a small hammer - umbrella-type caps exhaust valves simply stretched over the projections.

1 - exhaust valve stem seal
2 - the intake valve stem seal

  1. Starting at one end of the head, grease and install the first valve. Valve stem should be lubricated with grease or molybdenum-clean motor oil.
  2. Set into place the valve springs and their plates. Compress the spring with special tool.
  3. Set in the groove on the valve stem crackers cutting lock, then slowly release the tool and make sure of correctness of landing crackers. To fix the crumbs into the groove until the release tool put on their internal side a little grease
  4. Repeat for the remaining valves. Make sure that all components are installed on the former places!
  5. Check the installation length of the valve springs using a ruler or Columbus. If the head is sent for recovery and maintenance of the valves in the studio, adjusting the length of the springs have to be adjusted (but do not take it for granted). The measurement is made from the top of the seat / shim (washer) each spring to the bottom surface of the spring plate. If the height exceeds the maximum for Specifications value for its adjustment for spring can be added extra shim (s).

In no case the product is not permissible adjustments by placing washers insufficient height of the spring!


  1. Ensure compliance Specifications mounting height of the valve springs (the distance from the top of the saddle spring / shim to the top of the cup spring or the bottom of her plate).
  1. Grease working molybdenum-bearing surfaces of the rocker arms lubricated, then set to their former places in the head rocker and spherical bearings.




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Service valves
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Removing the connecting rod and piston assembly

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