I'd be amazed if a Schwinn had a French BB. However, as a further check, Sutherland's 3rd Edition, 1981, lists Nervar English BB cups as having one ring inscribed into the face of the cup, while Nervar French cups have no rings. Nervar Italian cups had two rings.
Regards,
Jerry Moos Big Spring, TX
David Bean <beandk@rcn.com> wrote: I'm cleaning and repacking the BB on a 73 Schwinn Sports Tourer. It has a Nervar bottom bracket. Before applying a lot of torque to try to loosen the fixed cup, maybe someone can tell me if it's right or left-hand threaded. (How French is this bike?)
David Bean
Arlington, MA