2. Remove the timing belt and balance shaft drive belt (see Sections Removal, condition check and installation of rocker arm assembly and Removal, condition check and installation of camshafts).
3. Remove the crankshaft pulley (see Section Removal, condition check and installation of rocker arm assembly).
4. Disconnect the wiring harness from the crankshaft position/TDC sensor (CKP/TDC sensor) (main harness connector). Remove the mounting bolts and remove the sensor assembly from the oil pump housing.
5. Remove the crankshaft gear and the concave washer installed underneath it.
6. Carefully pry the old seal out of its seat in the oil pump casing using a special tool or a large screwdriver. Try not to leave scratches or burrs on the surface of the shaft journal or pump housing - the presence of such defects will lead to rapid failure of the new seal.
7. Clean the inner surfaces of the seat for the seal. Lubricate the outer edge of the new seal with clean engine oil or multi-purpose grease. Using a socket head of the appropriate size or a section of pipe of the appropriate diameter as a mandrel, seat the new seal in its seat (the mandrel should rest only on the hard outer edge of the end surface of the seal). After seating the seal, make sure that the spacer spring has not jumped out of its groove.
8. Place the concave washer on the crankshaft journal, then install the gear.
9. Further installation is carried out in the reverse order of dismantling the components.
10. Start the engine and check it for signs of oil leaks.