Press the seal lightly by hand.
Pic. 2.110. Pressing in the front seal: 1- special fixture
Press in the oil seal using a special tool and a hammer (pic. 2.110).
Pic. 2.111. Scheme of pressing the front oil seal: 1 - hammer; 2 - special device; 3 – a forward cover of the engine; 4 - front oil seal