Hi Phil. It’s been some years since I rebuilt the SGS but if you need any advice, hopefully this ol’ pom can give you some guidance. Mind you, I’m probably telling my granny how to suck eggs.
One amusing incident when dismantling the frame. We were trying to remove the rear wheel spindle. The nuts came off easily enough but the spindle seemed to be seized into the frame. We had about 8 tonnes on it in the press together with penetrating oil, heat, you name it, we tried it. So we thought OK, let’s try and get some twist on it. With a bit of effort, it started turning anti-clockwise. Well, who puts threads on wheel spindles? Puch. That’s who!