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
   The general information
   The repair procedures, which performance it is possible without extraction of the engine from the car
   Reduction in position ВМТ 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 condition and installation коромысел and bars of pushers
   Replacement клапанных springs, their plates and маслоотражательных caps
   Removal and installation of the inlet pipeline / a final collector
   Removal and installation of a head of cylinders
   Replacement of a forward epiploon of a cranked shaft
   Condition check, removal and installation of a cover of a distributive chain, chain and its asterisks
   Removal, check of a condition and installation of a camshaft, bearings and hydraulic pushers
   Removal and pallet installation картера
   Removal, check of a condition and installation of the oil pump
   Removal and installation of a flywheel/privodnogo of a disk
   Replacement of a back epiploon коленвала
   Check of a condition and replacement of rubber pillows of support of the engine
+ Engine V8
+ Procedure of the general and engine 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

e65f60b7


Removal and installation of a head of cylinders

Before starting procedure performance, allow to the engine to cool down completely.

Removal

 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. Merge a cooler from a radiator and the engine block (the Head of Adjustment and routine maintenance).
  3. Remove air cleaner assemblage (the Head of the Power supply system and release of the fulfilled gases).
  4. Disconnect a fuel tube and a hose of the vacuum-proof-reader of an advancing of ignition.
  5. Uncover heads of cylinders (Has undressed Removal and installation of a cover of a head of cylinders).
  6. Remove коромысла and bars of pushers (Has undressed Removal, check of a condition and installation коромысел and bars of pushers).
  7. Отболтите an arm of the pump of system of hydrostrengthening of a wheel (if it is equipped) and will put the pump aside without disconnecting from it hoses so that the liquid did not follow from it.
  8. Remove the inlet pipeline and a final collector (Has undressed Removal and installation of the inlet pipeline / a final collector).
  9. Remove from a head of cylinders an arm of a tension roller drive a belt of the conditioner of air (if it is equipped).
  10. Loosen the a tension drive a belt of the generator also give a bolt of fastening of an arm of the generator to a head of cylinders.
  11. Disconnect a plait of wires and отболтите the compressor of the conditioner of air (if it is equipped), without disconnecting refrigerator lines of system. Will put the compressor aside and give two top bolts from an arm.
  1. Will 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 of Adjustment and routine maintenance).
  2. Disconnect wires from the gauge of temperature of a cooler which is located in a forward part of the engine in the thermostat case (the Head of System of cooling, heating and an air conditioning). Also disconnect a wire of grounding of the battery (on the right party of the engine).
  3. Remove the ignition coil in gathering with an arm (the Head System of an electric equipment of the engine).
  4. Liberate from clips on the passenger party of a head of cylinders heater hoses. Give шланговые collars ahead and put hoses out of the way.
  5. Give fixing bolts and remove a head from the engine. If the head "has become attached" to the block, get the lever in final port and slightly hook it.

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

Installation

 PERFORMANCE ORDER

  1. Carefully smooth out interfaced surfaces, having removed with all of them traces of a material of an old lining. Stop up cylinders with paper towels in avoidance обранивания in them of extraneous subjects.
  2. Check up a head on presence of cracks and infringements of planeness of an interfaced surface. The information on head service is resulted in the Head of Procedure of the general and engine major repairs. Having put a planeness measuring instrument (an edge of a steel ruler) whether to a head and the block check up their interfaced surfaces are deformed. If between an edge of a ruler and a surface passes an edge probeа in the thickness more than 0,20 mm, (the ruler should be pressed to a surface on all its length), it is necessary to give a head/block on фрезеровку. If head replacement is made, do not forget to transfer on it with old all fixture and other.
  3. Lay a new lining of a head on the engine block so that marks in the form of words TOР (Top) have been turned upwards. It is not necessary to apply any hermetic at installation of a lining.
  4. Wrap up (as at removal) a bolt № 14 adhesive tape and insert it into a head. Establish a head on the block and remove an adhesive tape from a bolt.
  5. Grease a bolt carving № with 11 hermetic of type Locktite 592 (or its equivalent), then establish bolts of fastening of a head, having tightened them by hand.

Head bolts can be used again only once. Therefore, having smoothed out heads of bolts, mark their paint. If the removed bolts already have been marked by a paint, it is necessary to replace them.


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

At a stage About a bolt № 11 it is tightened with smaller than the others effort (Specifications see). At all do not violate this condition!


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

  1. Installation of the remained components make in an order, the return to a removal order.
  2. Add a cooler and start the engine, having checked up it on serviceability of functioning and presence of leaks of a cooler and oil.