That carb problem again...I am hoping it is fixed.

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Dave H (MI)
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Tractors Owned: 1944 Ford 2N
1947 Farmall B
1949 Farmall Super AV
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1989 Ford 1520
Location: Livingston County, MI

That carb problem again...I am hoping it is fixed.

Postby Dave H (MI) » Tue Aug 27, 2019 7:47 pm

Once I got the float adjusted so that it does not leak...and it took a little run time in the shop to get the needle and seat to start getting broke in...well it still did not start/run right. Once I stopped focusing on the other, I started contemplating the effect of my stripped out stud. Sure, I could tighten the carb to the manifold, but it was dropping a hair after bouncing around in the field for a few minutes. Pretty good vacuum leak is what I had. My first attempt to helicoil the stud was not so good. Still would not start and run. When I took the carb off again I could see where the gasket was leaking. So I drilled out helicoil #1 and did a more careful job on #2. Still not starting. I discovered this leak when I wedged a 2x4 under the carb to compensate for the stripped stud. Ran great but stopped dead when the 2x4 fell off. So I went back to the 2x4 and it started and ran great. This gave me a chance to tighten the new helicoil stud real snug. Now it starts and runs without the board. A lot of head scratching over a loose nut! If it still starts and runs when I go back out there Friday Then it all gets put back together and I move on to the next project. Appreciate the help! Hope I am done with this for a bit and can get some time to use it. I have plenty of Cub toys I have never tried.

:tractor:
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Bob McCarty
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Re: That carb problem again...I am hoping it is fixed.

Postby Bob McCarty » Tue Aug 27, 2019 7:54 pm

The top of the carb (where it meets the manifold) is often warped. A flat file and a new gasket will correct any air leakage there.
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we need to think differently."
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Jackman
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Re: That carb problem again...I am hoping it is fixed.

Postby Jackman » Tue Aug 27, 2019 8:31 pm

If your talking about the manifold to carb stud you could just drill out the carb and put a bolt thru the manifold and a nut under the carb flange , thats the way mine is since 1992 , works good but it still warped ...... For 35 dollars you can get a surprisingly nice Chinese carb, I bought one it's nice really however I haven't installed it yet so no words on function.

Jim Becker
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Re: That carb problem again...I am hoping it is fixed.

Postby Jim Becker » Tue Aug 27, 2019 10:45 pm

Jackman wrote:. . . a nut under the carb flange . . .

One of mine was like that when I got it. They had ground off about 1/3 of the nut to make it fit. Not clear to me there is any way to avoid that problem.

Jackman
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Re: That carb problem again...I am hoping it is fixed.

Postby Jackman » Wed Aug 28, 2019 2:43 am

Jim Becker wrote:
Jackman wrote:. . . a nut under the carb flange . . .

One of mine was like that when I got it. They had ground off about 1/3 of the nut to make it fit. Not clear to me there is any way to avoid that problem.



Yup I did mine like that too , easy peasy grind off one side of the nut it worked well and continues to work well its a valid alternative to the stripped out flange threads :tractor:

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Rick Spivey
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Re: That carb problem again...I am hoping it is fixed.

Postby Rick Spivey » Wed Aug 28, 2019 5:47 am

Dave, I agree with Bob, your carb definitely "sounds" like it could be warped on the top surface. If it has to come back off, I would suggest you check that with a flat file, or a piece of emery cloth on a flat surface. Get it close and a gasket will seal it up.
Rick Spivey
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