I am losing pedal on my Mascotte's clutch. I am assuming this clutch is similar
to Model I and perhaps Q clutches.

It appears as if there is an adjusting nut (part 3109) between the throw-out
bearing and the clutch spring. I am guessing that this nut needs to tighten the
spring. I see the notation that there is a spring pin somewhere in this
mechanism, but don't know what or where it is or what it does? Lock the
adjusting nut?

Any advice on how to do this adjustment would be much appreciated.

Thanks