I understand the freezing and heating to install the new guides. But exactly what is the procedure? How is the new guide driven or pressed back in? As you know there is limited area inside the valve chamber to use a drift or hammer. Is there a special press tool? maybe a C-clamp could be used?
How does a person remove the one-piece valve guides in the Ford A? I am assuming that it is a press fit of some kind. Hoping no special tools for remove or re-install are necessary.