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
   General information
   Repair procedures which implementation is possible without extraction of the engine from the car
   Reduction in the provision of VMT of a step of compression of the piston of the first cylinder
   Removal and installation of a cover of a head of cylinders
   Removal, check of a state and installation of yokes and bars of pushers
   Replacement of valvate springs, their plates and maslootrazhatelny caps
   Removal and installation of the inlet pipeline / final collector
   Removal and installation of a head of cylinders
   Replacement of a forward epiploon of a bent shaft
   Check of a state, removal and installation of a cover of a distributive chain, chain and its asterisks
   Removal, check of a state and installation of the camshaft, bearings and hydraulic pushers
   Removal and installation of the pallet of a case
   Removal, check of a state and installation of the oil pump
   Removal and installation of a flywheel / driving disk
   Replacement of a back epiploon of the crankshaft
   Check of a state and replacement of rubber pillows of support of the engine
+ V8 engine
+ Procedures of the general and capital repairs of the engine
+ 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



Removal and installation of a head of cylinders

Before starting implementation of the procedure, let's the engine cool down completely.

Removal

 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. Merge a cooler from a radiator and the block of the engine (The head Nastroyki and routine maintenance).
  3. Remove assembly of the air cleaner (The head of the Power supply system and production of the fulfilled gases).
  4. Disconnect a fuel tube and a hose of the vacuum proofreader of an advancing of ignition.
  5. Uncover a head of cylinders (The section Removal and installation of a cover of a head of cylinders).
  6. Remove yokes and bars of pushers (The section Removal, check of a state and installation of yokes and bars of pushers).
  7. Otboltite an arm of the pump of system of hydrostrengthening of a wheel (if it is equipped) and put the pump aside without disconnecting from it hoses so that liquid did not follow from it.
  8. Remove the inlet pipeline and a final collector (The section Removal and installation of the inlet pipeline / a final collector).
  9. Remove an arm of a tension roller of a driving belt of the conditioner of air from a head of cylinders (if it is equipped).
  10. Weaken a tension of a driving belt of the generator and give a bolt of fastening of an arm of the generator to a head of cylinders.
  11. Disconnect a plait of wires and you otboltit the air conditioner compressor (if it is equipped), without disconnecting refrigerator lines of system. Put the compressor aside and give two top bolts from an arm.
  1. Put the compressor aside with the refrigerator lines connected to it - then give the top bolts of an arm (arrow).
  1. Mark candle wires and uncover the distributor together with the wires connected to it. Remove spark plugs (The head Nastroyki and routine maintenance).
  2. Disconnect wires from the sensor of temperature of a cooler which is located in a forward part of the engine in the thermostat case (The head of the Cooling system, heating and air conditioning). Also disconnect a wire of grounding of the battery (on the right side of the engine).
  3. Remove the ignition coil assembled with an arm (The head Sistema of electric equipment of the engine).
  4. Release from clips on the passenger party of a head of cylinders heater hoses. Give hose collars ahead and clean hoses from the road.
  5. Give fixing bolts and remove a head from the engine. If the head "stuck" to the block, bring the lever to the final port and slightly hook it.

The bolt No. 14 (see an illustration) cannot be removed finally until the head is not shifted forward. Delay a bolt on so many up, on how many it it is obviously possible and record it in this situation, having wrapped up an adhesive tape, then push a head forward and take a bolt.

Installation

 PERFORMANCE ORDER

  1. Carefully smooth out the interfaced surfaces, having removed from them all traces of material of old laying. Stop up cylinders with paper towels in order to avoid an obranivaniye of foreign objects in them.
  2. Check a head for existence of cracks and violations of planeness of the interfaced surface. Information on service of a head is provided in Chapter of the Procedure of the general and capital repairs of the engine. Having put the planeness measuring instrument (an edge of a steel ruler) whether to a head and the block check their interfaced surfaces are deformed. If between an edge of a ruler and a surface there passes the edge of the probe more than 0,20 mm thick, (the ruler has to be pressed to a surface on all its length), the head/block should be given on milling. If replacement of a head is made, do not forget to transfer to it with old all fixture and other.
  3. Lay new laying of a head on the engine block so that marking in the form of the word TOP (Top) was turned up. It is not necessary to apply any sealant at laying installation.
  4. Wrap up (as at removal) a bolt No. 14 an adhesive tape and insert it into a head. Install a head on the block and remove an adhesive tape from a bolt.
  5. Grease a carving of a bolt No. 11 with sealant like Locktite 592 (or its equivalent), then establish bolts of fastening of a head, having tightened them by hand.

Bolts of a head can be used again only once. Therefore, having smoothed out heads of bolts, mark them paint. If the removed bolts were already marked with paint, they should be replaced.


  1. Tighten bolts in the order shown on an accompanying illustration, observing the following requirements:
    • Stage And - tighten all bolts (with 1 on 14) one after another with effort of a stage And (see Specifications).
    • Stage In - tighten all bolts one after another with effort of a stage In (see Specifications).
    • Stage With - tighten all bolts, except No. 11 with effort of a stage With (see Specifications).

At a stage About a bolt No. 11 drags on with smaller what the others by effort (see Specifications). Do not violate this condition at all!


Order of tightening of bolts of a head of cylinders - do not forget to grease a carving of a bolt No. 11 (shooter) with sealant like Locktite 592 or its equivalent.

  1. You make installation of the remained components as it should be, the return to a removal order.
  2. Add a cooler and start the engine, having checked it for serviceability of functioning and existence of leakages of a cooler and oil.