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Super A exhaust manifold vs Carburetor linkage

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BobCD

06-26-2006 10:13:37

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I bought an exhaust manifold for Farmall Super 'A" Year, we think is between 1945 and 1948? No serial No. plate. The old Exhaust Manifold Pipe broke off, someone just tacked welded it on. (no threads in the manifold for the pipe) So I bought a new Exhaust manifold & gaskets from Yesterday Tractors Co. and it went on just fine. My problem is the Carburetor butterfly valve linkage (carter ut) hits the block and can"t move. The Carb is mounted to the exhaust manifold so it dectates where the carb will live. I'm wondering if the manifold mounting surface is not thick enough? I need about a 1/4 " more casting for the linkage on the carb to miss the block?

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gene bender

06-27-2006 04:13:37

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

Take both manifolds and lay them on a flat surface then compare the distance between the carb flanges to the surface they are setting on. Then make a serious call to the people you got it from and if they refuse to help just post there company on here so everyone can see what kind of people they are to deal with. They just mite not like that kind of exposure. What kind of business wants to sell parts that done fit? I have used after market manifolds on As and Bs without any problems. Thise site gets tons of exposure and i would think if you got someone on the telephone and had a serious talk you should get the solution solved.

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Janicholson

06-26-2006 21:47:32

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

On solution not discussed is to have the new manifold angle surfaced about 1 degree, to pull the carb out farther. Put it on loose, put a 1/8" spacer between the carb linkage and theblock, the snug up the bolts till the top touches all along. Then use feeler gauge at the bottom edge of theflanges at the head ports, to determine the amount needed to be taken off the top edge to make it fit.
I also believe that you should get a new manifold from the source. The finish is not the fit. Would you buy wormy sweetcorn, take it back and accept the excuse that you opened it up. I would get serious about protecting all of us from that lame rationalle. Thanks for listening to my opinion. JimN

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Brownie 45

06-26-2006 17:56:01

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

If I remember correctly, the throttle rod[governor to carb] is the closest to the block of any part on the carb. Without going out to look, if you can possibly get the throttle rod ground off enough to fit next to the carb instead of next to the block, you might be able to clear . It would require a small offset to be bent in the throttle rod, so's it wouldn't bind.Another possibility would be to take a die grinder & enlarge the holes in the manifold "away" from the block. Someone will no doubt have a better idea, though.

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BobCD

06-27-2006 08:07:41

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Re: Super A exhaust manifold vs Carburetor linkage in reply to Brownie 45, 06-26-2006 17:56:01

Brownie 45,
I just wanted to thank you and all the Guys out there that helped with their suggestions,I really do appreciate it, and I did ground down the throttle linkage end as close to the cotter pin hole as I could get, and you were right, it free up the valve and she's running! :)
Note:
The company I bought the Manifold from, I and another fellow think that the orig. carb was a Zenith and someone had put on a Carte UT carb, Super "A" in these years 47-48 had Zenith Carbs as I'm finding out. I'm not positive.
Thanks again!
Bob

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RustyFarmall

06-26-2006 12:27:59

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

If I understand you correctly, the carburetor fit just fine with the old manifold, but you now have a clearance problem when the same carb is installed on the new manifold. Those aftermarket reproduction manifolds are supposed to be an exact duplicate of the original. Sadly though, quite a few of the reproduction manifolds do not fit correctly, and they do not perform as well. Send that manifold back to the folks that you bought it from and tell them you want one that does fit.

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BobCD

06-26-2006 12:35:14

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Re: Super A exhaust manifold vs Carburetor linkage in reply to RustyFarmall, 06-26-2006 12:27:59

Yea, Your right, I just got done talking to them.
They said since I painted it with Hi-temp paint,
I couldn' return it. So be it, I'll make a spacer I guess to mount to the manifold/Carburetor.

Thanks,
Bob

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RustyFarmall

06-26-2006 12:41:58

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 12:35:14

I would talk to them again, it is not your fault that the manifold does not fit, and painting it did not change the fact that the manifold is defective.

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Tallperson

06-26-2006 12:17:18

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

Why don't you just have a new riser pipe welded to the old manifold. Any competent weld shop can weld to cast iron and then your carb will fit correctly without jury rigging. Tallperson

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BobCD

06-26-2006 12:29:39

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Re: Super A exhaust manifold vs Carburetor linkage in reply to Tallperson, 06-26-2006 12:17:18

Thanks,
That sounds like it maybe the only option or maybe an off-set spacer for mounting the carb. I can't return the new manifold since I painted it with hi temp paint.
Thanks for your suggestion,
Bob

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scotty

06-26-2006 11:30:08

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

Sorry Bob, misred your post. If Im understanding correctly, you dont have enough clearance between the carb and the block. If you put an extra gasket between the engine and manifold would that give you enough clearance?

scotty

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BobCD

06-26-2006 11:48:28

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Re: Super A exhaust manifold vs Carburetor linkage in reply to scotty, 06-26-2006 11:30:08

Thanks Scotty for the the quick reply. I would probley need at least 1/8 to 1/4 inch cleareance,
One gasket is about 1/16" so would it hurt two stack 2 or maybe three gaskets together? Or do you think that would could cause leakage? I sure do appreciate your thoughts on this.
Bob

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scotty

06-26-2006 12:13:29

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 11:48:28

Bob, The only problem is that the threaded studs coming out of the head are only so long ! I would think you could get away with two gaskets but after that you would be pushing it. Maybe someone else on here has more thoughts on this.

I dont blame you for not wanting to change carbs, especially if the one you have works fine.

As far as the gaskets go, you could try it, its not going to hurt anything by trying !

scotty

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BobCD

06-26-2006 12:38:09

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Re: Super A exhaust manifold vs Carburetor linkage in reply to scotty, 06-26-2006 12:13:29

Thanks for your help Scotty. "Will get er done one way or another"
Take Care,
Bob

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scotty

06-26-2006 11:26:43

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Re: Super A exhaust manifold vs Carburetor linkage in reply to BobCD, 06-26-2006 10:13:37

Hi Bob, Super A went into production in 1947 I believe. I have a 1949 Super A but I have a Zenith carb on mine.My 1942 A also has a Zenith also. Im not familiar with the Carter carb, but Im thinking you may need a adapter plate between the carb and manifold. You will still need gaskets in there to prevent an air leak. With the adapter your butterfly would be able to open up.

scotty

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BobCD

06-26-2006 11:59:33

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Re: Super A exhaust manifold vs Carburetor linkage in reply to scotty, 06-26-2006 11:26:43

Thanks Scotty,
I'm wondering if you know where I can get an adapter for this carb? Or have one made up? I think this would move the Carb down but still close to the block. I need to move it out and away from the block. I'm the third ownwer, so maybe they swaped out the Zenith with Carter carb? I hope I don't have to buy different Carbureteor, It Ran great untill I put on the new manifold.

Thanks again,
Bob

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