MadMax
Diamond Level Sponsor
Hello Sunbeam Guru's!!! I am new to the cause, wife and I just purchased our first Sunbeam (1960 Alpine, Series I). Love it, and car was meticulously restored to the 97% level, leaving mechanical issues. First is carbs. Has dual Zenith's in great shape. Car runs great, idles well at 700RPM. But...it will not drop to idle. Get the engine up above 2200 rpm, and will not drop down below 2000-2200. It is a linkage/butterfly closing issue. So I have taken the linkage apart from pedal to the connection to the carbs and there are no hang-ups or issues. I added a couple springs (old Porsche trick) and that did not work. Note, I can move the linkage by hand and get the butterfly valve to close and get smooth idle. But even with springs, can't get the linkage to retract that last little bit. So what do you think the issue is? To tight connections in the carbs holding up the butterfly valve? Pull the carbs and see (really rather not, but in for a pound..) Thanks!!!