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Farmall & IHC Tractors Discussion Forum
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Maybe dynamite would cure it.

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Joe Kimbriel

03-24-2008 19:03:30




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I have asked here before about having to run the Super C with the choke half on. The suggestions were carburetor needs cleaning. Did that over and over and still it’s too lean or rich depending on choke position. Vice grips work great, and if you see a Super C at the Tulare parade running around with a pair clamped to the choke lever, you will know it"s me. I sure would like to know what’s wrong though. I finally switched carburetors and still the same problem. When I removed the LPG carburetor I noticed two holes in the manifold. This didn’t look good so I plugged them. I pulled another manifold and there were holes in it also but did not go all the way through. What’s wrong with this beast? Is dynamite the answer?
Thanks,
Joe

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dej(jed)

03-25-2008 05:07:27




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Check the valve settings.



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Tim...Ok

03-25-2008 04:54:29




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Joe,loosen your genny or alternator and remove the fan belt..it won't hurt it at all to run it for a minute or two with no fan..just long enough to check for leaks,cause it sure does sound like a vacuum leak on or around the manifold..

Tim



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Richard E.

03-25-2008 04:39:32




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Check to be sure you have a good flow of gas through the sediment bowl shut-off. Mine bothers from time to time on my "M" . My 2 cents.....



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Brownie450

03-25-2008 04:17:25




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Hate to ask, but is the venturi in place in the carb? Sounds like metering problem in the carb.



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bc

03-24-2008 22:59:38




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
You can also try an unlit propane torch moving around the manifold to see if it revs up. Cut a piece of cardboard to hold by the fan to try to block the airflow.



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Mike CA

03-24-2008 21:02:40




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  

Joe Kimbriel said: Mike, We stay at the Sun and Fun RV park across the hwy, and park the tractor and trailer next to the show RV parking gate entrance area. If you see a car trailer with bales of hay and an umbrella on it, it will be us. Be sure to say hi. We live in the Sacramento area.


I'll try to keep an eye out. Are you a member of the IHC? I'm going to try to arrange a surprise after the meeting, letting the guy who passed down his H to me drive it once again. I want it to be a little "event".

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Mike CA

03-24-2008 19:38:30




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Joe, where are you going to be parked at Tulare? Are you from the area?

I'll be there, and probably going to park at the EDGE&TA area, since those folks have been very helpful for me. But I also want to park at the IHC chapter #14 area, since they have been helpful as well.
Too bad I don't have two H's! :lol:



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Joe Kimbriel

03-24-2008 20:11:06




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 Re: Maybe dynamite would cure it. in reply to Mike CA, 03-24-2008 19:38:30  
Mike, We stay at the Sun and Fun RV park across the hwy, and park the tractor and trailer next to the show RV parking gate entrance area. If you see a car trailer with bales of hay and an umbrella on it, it will be us. Be sure to say hi. We live in the Sacramento area.



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Bob M

03-24-2008 19:37:33




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Unless the manifold is ABSOLUTELY air tight no amount of carb work will get your tractor running properly!

So make sure the holes in the manifold are solidly plugged. Then check there's no cracks anywhere - even hairline cracks - or pinholes anywhere on the manifold..

The check gaskets between the manifold and the head; also between the carb and the manifold. These too must 100% air tight.

----

Now your problem could also be a cracked head or blown head gasket. But these will also accompanied by water/oil leaks, poor compression/loss of power, etc.

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rls_ia

03-24-2008 19:25:52




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Have you checked the air cleaner? Sometimes the pipe going to the air cleaner (the one thru the hood) gets oily dirt accumulated in it cutting down air flow. Have you ran it with the oil cup off to see if it is getting enough air?
Bob



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ScottyHOMEy

03-24-2008 19:23:54




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 19:03:30  
Start with holes in the manifold bein' the problem. Read "massive amounts of unfueled air." Those 123s don't take much choke to start, and won't run well for long with any choke at all, no matter how cold.

If you've got her to run with choke, she's gettin' too much air somewhere. You need to have a good manifold with no leaks. It needs to be mounted to the head with good gaskets torqued down. You need a good gasket between the top of the carb and the neck of the manifold. I don't like bringin' it up, 'cause it's costly to fix, but might you have a crack in the head? If all the easy things are in order, it might pay to have the head magnafluxed, but I'd think a leak that bad would be obvious to the eye.

If your carb is good to go, these are the only places (apart from the head gasket, but then you'd be havin' other, more serious problems) that you could be leakin' vacuum.

Let us know how you make out.

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Joe Kimbriel

03-24-2008 20:05:07




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 Re: Maybe dynamite would cure it. in reply to ScottyHOMEy, 03-24-2008 19:23:54  
Thanks, to all. I tried to spray starter fluid around the manifold to see if I could get a speed change, but the fan blows too much and it's just a waste of fluid. I'll keep looking.
Thanks again,



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El Toro

03-25-2008 03:45:20




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 Re: Maybe dynamite would cure it. in reply to Joe Kimbriel, 03-24-2008 20:05:07  
Have you checked the inlet screen behind the gas line fitting on the carburetor to see if there's any blockage there? Hal



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Joe Kimbriel

03-26-2008 07:06:40




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 Re: Maybe dynamite would cure it. in reply to El Toro, 03-25-2008 03:45:20  
I cleaned the carburetor and even switched carburetors. I'm going to try blocking fan wind or stopping fan to spray propane or acetylene gas around the area. If that don't do it I’ll check the valve settings. Man this one is driving me nuts.



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