Removing
Remove air filter.
Disconnect the wires from the battery terminals.
Pull the positive wire through the hole in the bulkhead and undock the connector.
Unscrew the drain plug of the cylinder block, drain the coolant into a substituted container and wrap the drain plug.
Remove the hood.
Disconnect the radiator inlet and outlet hoses from the thermostat and water pump.
Disconnect the throttle and choke cables from the carburetor.
Disconnect the wiring blocks from the electrical equipment components installed on the engine, disconnect the fuel supply hose from the fuel pump, and the fuel drain hose from the carburetor.
Remove oil filter with bracket.
Tie up the engine.
Remove the right front engine mount and place a jack under the transmission.
Remove the four upper bolts securing the clutch housing to the engine block.
Disconnect the jumper from the gearbox «mass».
Unscrew the cap of the input shaft of the gearbox, remove the retaining ring, unscrew the bolt from the rear end of the shaft and pull the input shaft out of the gearbox to failure with a puller. as stated in section «Clutch».
Disconnect the exhaust pipe from the exhaust manifold.
Remove the remaining engine mount brackets.
Remove the remaining bolts securing the clutch housing to the engine block.
Separate the engine from the clutch housing.
Turn the engine with the clutch side towards the front of the vehicle.
Raise the engine and remove it from the engine compartment.
Installation
Insert the engine into the engine compartment and install it in place, connecting it to the clutch housing.
Screw in and tighten the upper bolts securing the clutch housing to the cylinder block.
Install the right front engine mount bracket.
Remove the lifting straps and remove the jack from under the gearbox.
Install the oil filter with bracket.
Connect the muffler downpipe to the exhaust manifold.
Install the remaining engine mount brackets.
Carry out the remaining installation steps in the reverse order of removal.
Reinstall the gearbox input shaft as indicated in section «Clutch».
Pour liquid into the cooling system, as indicated in subsection «Cooling system».
Start the engine and warm up to normal operating temperature. Make sure there are no leaks.
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