Toyota 1g Fe Engine Manual -

It sounds like you’re looking for the or at least a detailed workshop manual for the Toyota 1G-FE engine — a straight-six, 2.0L, DOHC, 24-valve, non-turbo engine found in cars like the Toyota Mark II, Chaser, Cresta, Crown, Altezza AS200 (later version), and some Lexus IS 200 (in certain markets).