I went out to get our 1982 BMW 320i inspected this morning. Found that it wouldn't shift into any forward gear but would grind attempting reverse. It shifts into all gears fine when the engine is not running. My initial suspicion was slave or master cylinder but I want to make sure I'm not missing anything. Pumping the clutch pedal did not make a difference. Fluid level is okay and the pedal feels fine, as does the brake pedal. Oddly, as you attempt to push it into the gear (apply light effort into pushing it into gear) the engine does bog down slightly (speed drops a bit) until you release effort from the shifter. So, am I missing anything?