Hmm, sounds interesting. The thing is, the castings clamp to the steering column just fine (firmly), it's the stalk itself that won't stay where it's put. There seems to be a little pin (centrally located) on the mechanism against which a small lever rests when you push/pull the indicator up/down. This pin looks like it's worn: the edges have rounded. This seems to no longer hold the indicators in indicating position. They just pop back off as soon as you stop pushing/pulling them.
Now sanding the castings would move the release (or hold?) triggers closer to the curved plate on the steering wheel, is this what they need?
Hmm, I think I'll try a non-destructive method of testing this first, then if it looks promising I'll go ahead and file (sand!).
Thanks for the help! Much appreciated. But I have another bus that needs the things anyway, so I still need 'em if anyone's got 'em.
EDIT: oh I found that WolfsbuergWest has them new, but they say '57-'65 busses. Not being familiar with the intimate details of year-by-year changes, would the sizes be the same on the '67 (like the steering column dia.)? 12V ('67 thing) shouldn't be a problem yeah? But - are these supposedly pre-'65 ones self cancelling and all that? So much to ask, I'm sorry! Thanks again dudes.
http://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=211953513E
Aurel
[ Edited on 1-2-06 by aggri1 ]