CIS adjusting screw
 

I suspect this adjusting screw is not supposed to be this way? It's rounded at the end.

It's off of an 78 930. I was having some trouble turning the adjusting screw so I decided to investigate.

I may need one. Does anyone have one laying around they want to sell?

http://i475.photobucket.com/albums/r...2C10181D16.jpg

I cut it down and it seems to work fine. Hard to believe. Got used that much.

Check that the adjuster itself is actually able to move rather freely. If if binds then it'll just round off again.

ahhh that reminds me, need to pick one up. (or two to have a spare) The end can be ground a little but eventually it wont engage the 3mm adjuster. In a pinch you can use a long 3mm allen, just have to pull the adjuster each time. I replaced the flat head screws with allen to make it easier to remove and reinstall.