Jeep Grandee Cheroki
+ Jeep Grand Cherokee brand Cars
+ Settings and routine maintenance
+ Ryadny six-cylinder engine
+ V8 Engine
- Procedures of the general and major maintenance of the engine
Major maintenance of the engine - the general information
Check of kompressionny 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 engine installation
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 shatunno-piston assemblies
Removal of a cranked 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 shatunno-piston assemblies
Check of a condition of a cranked shaft
Check of a condition of radical and shatunny bearings
Engine assembly order after completion of its major maintenance
Installation of a cranked shaft and check of gaps of radical bearings
Installation of piston rings
Installation of shatunno-piston assemblies and check of gaps in shatunny bearings
The first start of the engine after major maintenance
+ Systems of cooling, heating and air conditioning
+ the 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
+ System of onboard electric equipment
+ Governing bodies and operation receptions
Removal and engine installation
Air central air constantly is under pressure! Before disuniting refrigerator lines or to remove any components of system, make its discharge at car repair shop of dealer office or in a specialized workshop.
- Dump pressure in a power supply system (Head of the Power supply system and production of the fulfilled gases), then disconnect a negative wire from the battery.
These models of cars are equipped with safety cushions. The pillow constantly is in readiness and can work to (be inflated) at any time at the connected battery. In order to avoid casual operation of system (and receiving as a result of a trauma) each time at work with safety cushion components (including sensors of blow which can be located near a lattice/bumper lobby) disconnect from the battery a negative wire. After battery shutdown before starting to work it is necessary to wait not less than 2 minutes (the system is equipped with the condenser of a delay which should be discharged completely). For more details see. Head System of onboard electric equipment.
- Cover wings of the car and a forward fairing and remove a cowl (Head the Body). For protection of wings specially formed covers are issued, however also old blankets not worse will approach.
- Remove air purifier assembly (Head of the Power supply system and production of the fulfilled gases).
- Empty cooling system (Head of Control and routine maintenance).
- Mark vacuum lines, hoses of systems of decrease in toxicity of the fulfilled gases, electric sockets, tires of grounding and fuel lines (for the purpose of a guarantee of their correct connection at assembly) and disconnect them. Just in case make also the scheme of laying of lines, hoses and wires in an impellent compartment.
- Mark and disconnect from the engine hoses of system of cooling.
- Remove the fan of system of cooling with a casing and a radiator (The head of System of cooling, heating and air conditioning).
- Remove a driving belt (and) (Head of Control and routine maintenance).
Gasoline is inflammable liquid therefore at work with components of a power supply system of the car it is necessary to observe some special precautionary measures in the highest measure. Work should be made in well ventilated room in which should not be working at natural gas and the heating devices equipped with a control torch (such as водогреи and dryers for clothes and footwear) approach to a venue of works with the lit cigaret, open fire or unprotected by the lamp shade carrying Is inadmissible. In view of aggression of gasoline, there where there is a danger of its spillage in the course of performance of any procedure, put on protective latex gloves. Got on open sites of a body gasoline immediately wash away a plentiful quantity of water with soap. Near at hand always there should be a fire extinguisher of a class of V.Otsoyedinite from the engine the fuel lines, going chassis of the car (Head of the Power supply system and production of the fulfilled gases). To Zakuporta open ends of lines and connecting unions.
- Disconnect draft of gas (and also draft of a drive of a butterfly valve in a mode kik-Down (TV draft) and a drive cable темпостата if those are provided) from the engine (Head of the Power supply system and production of the fulfilled gases).
- On the cars equipped with system of hydrostrengthening of a wheel отболтите the pump of the hydraulic booster (Head the Suspension bracket and a steering). Put the pump aside, without disconnecting from it lines/hoses and so that hydraulic liquid did not follow from it (down a bottom). Tie up the pump a wire.
- Tie up the pump of system of hydrostrengthening of a wheel with the lines connected to it aside - track that the pump was located down a bottom.
- On the models equipped with the conditioner of air отболтите the compressor (The head of System of cooling, heating and air conditioning) and also shift it aside. Do not disconnect from the compressor hoses.
- To Otboltita the compressor of the conditioner of air also put it aside (without disconnecting hoses).
- Merge impellent oil (Head of Control and routine maintenance) and remove the oil filter.
- Remove a starter (Head System of electric equipment of the engine).
- Remove the generator (Head System of electric equipment of the engine).
- To Otboltita from the engine a reception pipe (ы) systems of production of the fulfilled gases (Head of the Power supply system and production of the fulfilled gases).
- If works are made on the model equipped with AT, give fixture of the converter of rotation to a driving disk (Head Automatic transmission).
- Prop up transmission by a jack. Between a head of a jack and a transmission case for distribution of loading lay wooden whetstone. The special transmission jacks equipped with safety chains are issued - whenever possible use one of the such.
- Connect to engine eyes an elevating rigging (slings or chains).
- Deduce on a working point the winch of a telfer and connect a rigging to its hook. Choose a weak point of a sling (chain), however do not lift while the engine.
Do not stand and do not perform any works under the engine, hung out only by means of the winch or other elevating equipment.
- Connect the elevating rigging fixed on the engine to a hook of the winch and choose a weak point.
- Give bolts of fastening of transmission to the engine.
- Give bolts of fastening of support of the engine to a frame.
- Once again make sure that the engine is completely disconnected from transmission and a car frame. Disconnect everything that forgot.
- Slightly raise the engine. Carefully advance it forward, disconnecting from transmission. If works are made on the car equipped with AT, take measures that the converter of rotation did not drop out of transmission (fix on walls of an aperture of a case pair of manual vice). On models from RKPP primary shaft should leave coupling completely. Then slowly lift the engine and take it from an impellent compartment.
- Remove a flywheel / a driving disk and establish the engine on the assembly stand.
- Check a condition of support of the power unit. If rubber pillows are worn-out or damaged, replace them.
- On models from RKPP establish a coupling basket (Head the Manual box of gear shifting). Now it will be a high time to replace a conducted disk.
- Carefully lower the engine in an impellent compartment - track correctness of combination of components of support.
- On cars from AT make a joint of the converter of rotation and a cranked shaft (Head Automatic transmission).
- At RKPP slightly grease a pin of primary shaft with high-temperature greasing and enter it into directing bearing of a cranked shaft so that the dome of a case appeared aflush with the engine block.
- Establish bolts of fastening of the engine to transmission and strongly tighten them.
Do not try to use AT ALL fixing bolts for engine pressing to transmission.
- Installation of the remained components make as it should be, the return to an order of their removal.
- Necessarily fill in a cooler, impellent oil, liquid of system of hydrostrengthening of a wheel and transmission liquid.
- Start the engine and check it on leaks and serviceability of functioning of all units and accessories, then establish a cowl and carry out trial runs.
- Make a recharge and check on leakages of central air of air.