All:
I was working on the car today and "playing" with the idle control screw/fuel-air mixture screw (#5 in the instruction book) and noticed that while fine tuning to what I though was a good setting, there seemed to be a "hissing" sound (air) coming from that part. That is, I could place my fingers on the screw itself which would stop the hissing/air, as if the screw was loose inside the housing.
My first thought was/is this is not normal and there shouldn't be any leak/suction (air) here. Am I correct in this? If so, is the screw somehow worn out causing excessive play?
Has anyone had this issue before or is this normal operation?
Thanks,
Ted
Hi Ted !
Dont that is normal , you maybe able to put some teflon pipe sealing tape as a tempory fix though !
cheers Tony.
Hi Ted,
I might guess this is normal, though with my hearing loss I can't hear it. As this screw "operates on the air ..," I believe this port allows air in and allows the fine tuning of the combustion mixture.
frank
Thanks guys...still a little confused with the different answers :)
If anyone else wants to weigh in and check this area out with their car running, that would be great. If this IS normal, than no worries. If not, then I guess I need to replace the screw. :-\
On some carburetor 's. the screw is there to bypass air in chamber or throught of Carby don't think it's from outside as dust can be drawn in . Best to ask a Carby rebuilder to be sure
Cheers Tony
Here's a photo of the screw and spring...does this look like yours?
URL=http://s947.photobucket.com/user/racertb/media/IMAG0624_zps8c264be4.jpg.html](http://i947.photobucket.com/albums/ad320/racertb/IMAG0624_zps8c264be4.jpg)[/URL]
Sorry, but what carb are we refering to. Is this a Carter RT-08, DRT-08 or something else, It will make a big difference.
Happy Motoring, Gary
Gary:
RT-08