In article ,
Al Gilson wrote:

Tony, my carb heat knob came off the first time I flew our 172 E. Can I
borrow your vise grips?

When I had a carb heat knob in a 172 come off I got the knob, the
shaft and the control cable. In the process it did turn the carb
heat on to a degree I had never seen in that 172!

--
Ben Jackson

http://www.ben.com/