Thanks again Grumpy (et al.). I loaded up that manual on the iPad and went through it the other night. Mate, there is some detail in that document. Here I was thinking I might be going into this head gasket job blind.
Still raining and grass still growing. I've toyed with the possibility of dragging the Allan Oxford sickle-bar out of the shed! Although I got over keen and began a resto on the Greenfield while sorting out the White. In the meantime the Grassmaster is holding the green hordes back.
The head-job starts next week. That doesn't sound quite right, does it?
Once again, thanks on a brilliant site and resource base.
Will keep you posted.