[JHFORD51]

Absolutely forget what you see in the manuals; it ain't coming apart that way. You have years of carbon and sludge locking the whole assembly together, not to mention water damage. For that condition engine no special tools are required. A piece of rebar or round stock heated on the end and flattened out with a groove ground in it, a hammer, a screwdriver, and a socket/punch slightly smaller than the valve guide bore is all that is required. Pry the valve spring up and hold it there, hit the head of the (raised) valve with a hammer, this will knock off the locks. Sometimes one will stick, repeat or use screwdriver to tease it off. Remove valve spring prying device. Place crowbar under head of valve and pry it out of the guide. get spring and retainer out of the way. using suitable socket/punch drive valve guide down the bore into valley. Once you do one or two you will get the hang of it. Start with easy to access ones; save difficult ones for last.