2 seconds.... otherwise bearing is dry.. Matt Nall Charleston, Oregon http://tinyurl.com/The-Corvair-Patio http://tinyurl.com/Matts-Tech-Pages -----Original Message----- From: Ralphsebrell via VirtualVairs <virtualvairs at corvair.org> How fast/long should the blower fan run (without the Belt) when spun by my finger?