Hi You cannot remove the rocker arm shaft with the cylinder head still on the engine block.
The reason is that the rocker arm shaft has notches(reliefs) in it. Through these reliefs pass the cylinder heads studs. In fact, if after reassembling a head you don't properly align the rocker arm shaft (notches facing the studs) you can't even get the head to go back on the block. Removing the rocker arm shaft itself can be a real chore. Sometimes it comes out easy, other times you have to clamp the head to the bench and use a slide hammer to get the shaft out. The shaft is threaded internally at the front, it takes a 10mm bolt, I forget the pitch. Bye -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]

