Good day to everyone. I come from Pforzheim and have been driving my beloved Opel record D 1700 S, bj 1972 for about 7 years. He was always a loyal fermented one, but at the moment he only touches very stubbornly from the spot. Maybe someone has had a similar problem here and can help me. So start with: My engine has been having problems for a long time. Does not accept gas, goes out constantly and runs quite difficult. In the upper speed range lä When expanding the carburettor (solex didta 32/32) there was a nozzle in the float chamber and a little bit of about 2 mm diameter? I assume that this is the ball valve??? Does anyone know if the ball has to be placed under the valve in the lateral shaft in the float housing? I am of course happy about every info as a newcomer. I try to attach 2 pictures. Nice greetings to everyone, Steffen.