SU Question

["Daryl Smith" <drlsmith@telus.net>]

Was setting the carbs with a caliper today and noticed that the pin to lift
the rear carb piston is missing. The assembly numbered 10, 11, 12 in the
Clymer manual is missing.

It doesn't look like this would affect the way the car runs, or would it?
Isn't this pin just used when adjusting the carbs?

Thanks
Daryl

PS: Thanks for the responses to my "Colortune" question.