The Ford Barn

Mart · 10-10-2022, 07:34 AM

I started my Sedan recently and inadvertently left the choke full on. It started instantly then died. I restarted but there was a hell of a lot of black sooty smoke from at as it struggled to run.

Once I realised what I had done I opened the choke and all was back to normal.

If using choke to start as soon as it starts take as much choke off as you can and get it fully off as soon as possible.

Re the idle mixture screws. 1-1/2 turns is a rough guide to get you started. They should be adjusted to achieve a smooth idle. One might be 1/2 turn in, the other might be 1/4 turn in. They should be adjusted with the engine running. The vacuum gauge method is ideal but just getting it so it sounds as good as you can is ok too. There isn't any fits all setting that would be perfect for every engine and carb.

It sounds like you have it ok now.

Mart.

10-10-2022, 07:34 AM	#15
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 9,083	Re: Soot from tailpipe at startup. I started my Sedan recently and inadvertently left the choke full on. It started instantly then died. I restarted but there was a hell of a lot of black sooty smoke from at as it struggled to run. Once I realised what I had done I opened the choke and all was back to normal. If using choke to start as soon as it starts take as much choke off as you can and get it fully off as soon as possible. Re the idle mixture screws. 1-1/2 turns is a rough guide to get you started. They should be adjusted to achieve a smooth idle. One might be 1/2 turn in, the other might be 1/4 turn in. They should be adjusted with the engine running. The vacuum gauge method is ideal but just getting it so it sounds as good as you can is ok too. There isn't any fits all setting that would be perfect for every engine and carb. It sounds like you have it ok now. Mart.