Removing
Place the car on a lift.
Remove the camshaft drive belt.
Raise the vehicle.
Drain the engine oil.
Disconnect the muffler intake pipe from the exhaust manifold.
Remove the oil pan.
Remove the oil pump receiver.
Turn away a bolt of fastening of a gear pulley of a cranked shaft.
Remove the engine front cover with oil pump and remove the oil pump from the cover.
Installation
Press a new front crankshaft oil seal into the front cover socket, after lubricating it with engine oil.
Replace the oil pump.
Install the engine front cover with a new gasket.
Install the oil pan with a new gasket, applying sealant to the mating surfaces.
Check the tightness of the oil sump drain plug.
Install the toothed pulley on the crankshaft.
Install the camshaft drive belt.