I know this post is very, very, old now but it has been a few years and a couple of hundred rod brake systems I've worked on at this point. I would like to offer a hearty thanks to everyone that lent a hand here on bikeforums.net.
I just published a little video I did about working on an old Raleigh - after having found a source for rod brake block inserts from Kool Stop.
http://flyingpigeon-la.com/2012/01/r...-la-bike-shop/
Thanks again everyone.