RE: Rebuilt T-15 won't start.
You are correct, the starting pin is missing. This is what the starting pin looks like along with the spring that fits in behind the pin. [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGEH0&P=Z]Pressure Pin[/link] I'd make sure that the pin didn't fall off somehow when you were putting the engine back together and its now rolling around in the engine somewhere.