The arm that is connected to the spring has a u shaped ending which snapped on the way to Goodwood yesterday.
I can't for the life of me get the arm to return on it's own and therefore idle correctly. tried the spring and idle adjust to no end.
The car idles too high/the throttle sticks open and I have to pull the arm back manually to get it to idle at low revs.
Pete had the same problem the other day and only just managed to get it sorted but with thar now snapping it seems to have gone back to the same prob. I have thrown on 3 washers and a hex nut to hold the barrel in tight that the grub screw goes into but still the arm won't return to the correct spot.