left magneto timing tips, tools, or tricks?

[DavidC]

I am new to my 336 and my IA also has very limited experience with the io-360. Working on first annual - Today we were checking and setting mag timing and quickly discovered that the outer clamp on the left mag is very inaccessible. We couldn't get any wrenches or combination of wrenches in our tool boxes to fit in there. Thinking now about grinding and bending wrenches to try to make this work.

Does anyone have a good suggestion for a tool or combination of tools to get at this nut? Thank you.

David C