Contents: Removal the power unit: methods and…⇓ Cars with engines with a working…⇓ Cars with engines with a working…⇓
The power unit consists of an engine, clutch and gearbox. It is removed using a hydraulic lift or hoist, lowering it from the engine compartment onto a trolley. In this case, the ends of the front wheel drive shafts are disconnected from the power unit and remain on the vehicle.
Removal the power unit: methods and safety precautions
If a decision is made to remove the engine for major repairs or
repair of the main components, then it is necessary to carry out certain preparatory measures.
It is extremely important to determine the place where the work will be carried out. Undoubtedly, the best place for this is a workshop. It is very important to have an equipped work site, as well as a place to store the car. If there is no workshop or garage, then a flat, smooth concrete or asphalt site will be required.
Washing the engine compartment and engine before removal will keep the tool clean and in good working order at all times.
You will also need a lift or hoist. Make sure that these devices have a load capacity reserve and are capable of lifting the engine with all attachments. Compliance with safety measures is of paramount importance, since lifting the engine from the car is a potentially dangerous operation.
If the engine removal work is carried out by an inexperienced person, then an assistant is needed. Consult and ask for help from those who have experience in such work. There are many ways to lift the engine from the engine compartment that exclude doing it alone.
Plan your actions in advance. Obtain all the necessary tools and equipment before you start work.
Some of the safety equipment needed to remove and install the engine and reduce labor costs include (in addition to the lift) sturdy stands, a full set of wrenches and mandrels, wooden blocks, rags, and solvent to clean up the inevitable puddles of spilled operating fluids. If you plan to rent a lift, agree on this in advance and perform all work that does not require this mechanism. This will save money and time.
Keep in mind that you may not be able to use your car for a long time. To perform some work that is not possible at home (due to the lack of special equipment), you will have to contact a service station or a specialized workshop. These companies work according to a plan, so it is advisable to consult them before removing the engine to accurately estimate the time spent on repairs and restoration of parts.
Always be very careful when removing the engine. Thoughtless actions and haste can cause serious injuries. Think about your actions in advance. Do not spare time for this, because the main thing is to work without injuries.
Cars with engines with a working volume of 1.1 and 1.3 liters
Removal and installation of the power unit
Note: When removing the power unit, ensure that the jacks and stands are installed correctly, and that the engine is properly secured.
Caution: Take measures to prevent the vehicle from rolling or falling off the stands when working under the vehicle.
Open the hood, disconnect the wires from the battery and remove it.
Remove the windshield wiper arms together with the blades.
Remove the air intake cover of the vehicle's interior ventilation system.
Remove the windshield wiper motor assembly with rods.
Remove the lower protective cover.
Disconnect the electrical connectors of the electronic engine management system wire harness and the electrical connector of the reverse light.
On vehicles with a manual five-speed gearbox, remove the clutch slave cylinder.
Disconnect the electrical connectors of the oxygen concentration sensor and the oil pressure warning lamp sensor.
Disconnect the electrical connectors from the rear HO2S sensor and ignition coil.
Disconnect the electrical connectors of the coolant temperature sensor and the TDC sensor of the first cylinder piston.
Disconnect the jumper cables (buses) from the engine connecting to the body ground.
Disconnect the vacuum hose from the fitting on the brake booster housing.
Disconnect the fuel supply and drain lines from the engine.
Disconnect the crankcase ventilation hoses from the engine.
Note: Before disconnecting the fuel lines, first relieve the pressure in the engine fuel system.
Drain the cooling system.
Disconnect the hoses from the automatic transmission oil cooler (if the vehicle has an automatic transmission) (1.3L engines only).
Note.
- Before disconnecting the hoses, mark them to avoid mixing them up during installation.
- Make sure that no liquids or oils leak from the disconnected hoses. Plug the openings to prevent contamination.
Disconnect the radiator inlet and outlet hoses from the engine, then remove the radiator assembly with hoses.
Disconnect the heater hoses (inlet and outlet) from the engine.
Disconnect the throttle control cable from the engine.
On vehicles with a manual transmission, disconnect the shift cable.
On vehicles with an automatic transmission, disconnect the control cable from the transmission (only on vehicles with 1.3L engines).
Disconnect the speedometer drive flexible shaft from the gearbox.
Loosen the air conditioning compressor mounting bolts and remove it from the mounting bracket.
Remove the steering gear dust cover, loosen the steering shaft terminal connection bolt and remove the steering gear.
Note: Pre-mark the relative positions of the terminal connection and the steering gear drive gear.
Raise the car with a jack and remove the wheel.
Disconnect the brake assembly from the steering knuckle and hang it on a wire hook from the suspension strut.
After unscrewing the mounting bolts, disconnect the suspension strut from the steering knuckle.
Remove the wheel speed sensor from the steering knuckle (if equipped with an anti-lock braking system).
Disconnect the exhaust pipe from the exhaust manifold.
Note: During the work, hang the exhaust pipe on a hook made of strong wire to the body.
Suspend the engine with chains or cables.
Using a hoist, lift the power unit slightly (to a height that allows further operations to be performed).
Loosen the bolts securing the suspension bracket to the engine.
Slowly raise the power unit (to relieve the load on the suspension brackets) and leave it in this position temporarily.
Note: Make sure all cables, hoses, wires, electrical connectors, etc. are disconnected from the engine beforehand.
Remove the plugs located on the right mudguard and unscrew the transmission suspension bracket mounting bolts.
Loosen the bolts and nuts securing the crossmember.
Remove the power unit from the engine compartment by tilting it with the gearbox facing down.
Install the power unit in the reverse order of removal.
After connecting the throttle actuator, adjust it as described in the subsection "Power supply system".
Cars with engines with a working volume of 1.5 and 1.6 liters
Removal the power unit
Note: When removing the power unit, ensure that the jacks and stands are installed correctly, and that the engine is properly secured.
Caution: Take measures to prevent the vehicle from rolling or falling off the stands when working under the vehicle.
Open the hood, disconnect the wires from the battery and remove it.
Remove the windshield wiper arms together with the blades.
Remove the air intake cover of the vehicle's interior ventilation system.
Remove the windshield wiper motor assembly with rods.
Remove the lower protective cover.
Disconnect the electrical connectors of the electronic engine management system wiring harness.
Disconnect the electrical connector from the generator and the oil pressure sensor in the engine lubrication system.
Disconnect the vacuum hose from the fitting on the brake booster housing.
Disconnect the fuel supply and drain lines from the engine.
Disconnect the crankcase ventilation hoses from the engine.
Disconnect the hoses from the automatic transmission oil cooler (if the vehicle has an automatic transmission).
Note.
- Before disconnecting the hoses, mark them to avoid mixing them up during installation.
- Make sure that no liquids or oils leak from the disconnected hoses. Plug the openings to prevent contamination.
Drain the cooling system.
Disconnect the radiator inlet and outlet hoses from the engine, then remove the radiator assembly with hoses.
Disconnect the jumper cables (buses) from the engine connecting to the body ground.
Disconnect the heater hoses (inlet and outlet) from the engine.
Disconnect the throttle control cable from the engine.
On vehicles with automatic transmission, disconnect the control cable from the transmission.
Disconnect the electrical connector from the switch and the fuel shut-off solenoid valve.
Loosen the air conditioning compressor mounting bolts and remove it from the mounting bracket.
Raise the car.
Disconnect the exhaust pipe from the exhaust manifold.
Note: During the work, hang the exhaust pipe on a hook made of strong wire to the body.
Disconnect the steering knuckle from the front suspension strut.
Disconnect the brake assembly from the steering knuckle and hang it on a wire hook from the suspension strut.
Remove the wheel speed sensor from the steering knuckle (if equipped with an anti-lock braking system).
Suspend the engine on chains or cables. Using a hoist, lift the power unit slightly (to a height that allows you to perform subsequent operations).
Loosen the steering shaft terminal connection bolt.
Loosen the bolts securing the suspension bracket to the engine.
Slowly raise the power unit (to relieve the load on the suspension brackets) and leave it in this position temporarily.
Note: Make sure all cables, hoses, wires, electrical connectors, etc. are disconnected from the engine beforehand.
Remove the plugs located on the right mudguard and unscrew the transmission suspension bracket mounting bolts.
Loosen the bolts and nuts securing the crossmember.
Remove the power unit from the engine compartment by tilting it with the gearbox facing down.
Install the power unit in the reverse order of removal.
After connecting the throttle actuator, adjust it as described in the subsection "Power supply system".