Did you find any 1920's laying around? I am looking for another , looks like the 3920 I rebuild for the back is working good , ( no return spring on that model ) but the front one - with that anti ice system is in pretty bad shape all pitted inside , and one of the metering block screws broke off when I was taking it apart. Was using a small screw driver , and it broke easily. I think I read somewhere that you should not remove the throttle plate and shaft assembly because they like to leak when disturbed , anyone have any comments about that? I will need to alter the linkage to match up to a different carb because of the way they sit on the Offy intake.
