We engage the gear and the parking brake, then use a 38 mm wrench to unscrew the crankshaft pulley mounting nut.
Using a mounting blade, we press the crankshaft pulley away from the front cover...
...and remove the pulley.
We pry up the front crankshaft seal with a screwdriver...
...and remove it from the lid.
After lubricating the working edge of the new cuff with engine oil, we press it into the cover, using the old cuff as a mandrel.
We install the pulley in the reverse order. At the same time, we make sure that the crankshaft key gets into the pulley groove.