1992 Honda Civic water pump and seal

Engine Mechanical problem
1992 Honda Civic 4 cyl Front Wheel Drive Automatic 170,k miles

i gotta change out my old water pump. the old one is leaking and just done in better words. but my real problem is i dont know how to change the timing seal. i was told any time you change the water pump theres a timing seal that must be replaced also.Im not exactly posistive if the mechanic said it was a timing seal oer timing belt because he had a heavy accent. but i really appreciate if someone could tell me how do i replace the timing seal or belt

? theres a pic uploaded of my engine to show whats there if needed to direct me by. thanks again. civicsix