Page 2 of 2
Re: Carb question
Posted: Fri Jan 12, 2024 5:49 pm
by propane1
Re: Carb question
Posted: Fri Jan 12, 2024 6:04 pm
by CaseIngersollNE
Thats a great price on a Float and great shipping price to Canada Bob! Noel I would grab a brass float for sure as you will run into trouble with that old style float and more than likely at the most inconvenient time lol. I set all DD carbs at 1 1/4 on idle screw and 1 3/4 on main as a starting point and go from there.
Re: Carb question
Posted: Fri Jan 12, 2024 8:18 pm
by myerslawnandgarden
I do somewhere have an updated procedure for main fuel adjustment on the DD carbs, question is can I find it? The recommended way sometime after the service manual specs requires adjustment under load at a specified rpm. This might be right or wrong, but as I remember you set the throttle to say 3000 rpm and then apply a load that drops engine speed to 2800. I always ran the front wheels up against a curb in high range. Then turn the main in until it stumbles and then back out until it is steady under load. I will try to find the service bulletin and post it, please remind me if I forget.
Bob
Re: Carb question
Posted: Fri Jan 12, 2024 8:41 pm
by propane1
Here’s a video of me setting the screws on the carburetor.
A reminder. I’m not trained in this. Just a back yard fixer or you know.
Any way, I’ll get it out soon and see how it works.
Thanks for all the interest and comments.
Noel.
https://youtu.be/yAhoQu-gBTA?si=XdQ5u5RAg1VucZs9
Re: Carb question
Posted: Sat Jan 13, 2024 6:25 am
by DavidBarkey
myerslawnandgarden wrote: ↑Fri Jan 12, 2024 8:18 pm
I do somewhere have an updated procedure for main fuel adjustment on the DD carbs, question is can I find it? The recommended way sometime after the service manual specs requires adjustment under load at a specified rpm. This might be right or wrong, but as I remember you set the throttle to say 3000 rpm and then apply a load that drops engine speed to 2800. I always ran the front wheels up against a curb in high range. Then turn the main in until it stumbles and then back out until it is steady under load. I will try to find the service bulletin and post it, please remind me if I forget.
Bob
I like that method Bob
Re: Carb question
Posted: Mon Jan 15, 2024 6:56 am
by propane1
Well. I got it outside and found a little snow to throw. All worked good. Now . I need a little storm to test it.
Noel
https://youtu.be/F3oN3hx0MY0?si=N0EVjRRA8qiPJN81
Re: Carb question
Posted: Wed Jan 17, 2024 8:47 pm
by propane1
2” of wet snow and slush today. Took the Case 446 out and it handle it with ease.
Noel.