…from the hole located at the bottom at the junction of the clutch housing with the engine oil pan.
Remove the gearbox (see Removal the gearbox), "basket" and driven clutch disc (see Replacing the clutch basket and driven disc).
We mark the position of the flywheel relative to the crankshaft with a marker.
Using a 17 mm head, unscrew the six bolts securing the flywheel to the crankshaft flange, holding the shaft from turning with a screwdriver inserted into the socket (through a groove in the oil pan) between the teeth of the flywheel ring gear.
We remove the flywheel.
We pry the seal with a screwdriver and remove it from the seat.
Apply a thin layer of engine oil to the working edge of the new seal.
We put the oil seal on the crankshaft flange..
…and press it into the socket, using the old seal as a mandrel.
We install the flywheel according to the previously applied marks. Before screwing in the flywheel mounting bolts, we apply anaerobic thread locker to their threaded part. We tighten the flywheel mounting bolts to the prescribed torque (see Tightening torques for critical threaded connections).
We carry out subsequent assembly in the reverse order.