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1951 farmall cub starts easily then dies
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1951 farmall cub starts easily then dies
Cub starts easy then dies had the carburetor rebuilt coil replaced resistor replaced. If you let it set it will start again and run for about a minute. If you choke it it makes it worse when it's starting to die. Let it sit for about an hour and it starts right up again. It will fire and try to start after the first time but it won't stay running.
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Re: 1951 farmall cub starts easily then dies
It's either starving for gas or your float isn't adjusted right in the carb. Have you taken the cut off out of the tank and cleaned it real good? Does it have a steel or rubber fuel line?
Every home is a school, what are you teaching?
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Re: 1951 farmall cub starts easily then dies
I put new rubber lines on it with an in-line fuel filter so I can watch the fuel level. It did this before I had the carburetor rebuilt and before I change the fuel lines and it still doing the same thing. And yes I took the strainer ball down and cleaned it.
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Re: 1951 farmall cub starts easily then dies
Probably the filter then, there are 2 different kinds. One is for a system with a fuel pump and one without, I've ran into this problem before. If it's not that then I would suspect something is up with the carb itself.
Every home is a school, what are you teaching?
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Re: 1951 farmall cub starts easily then dies
There is only one fuel filter. This carb does not have a fuel pump. New strainer on carburetor. And new in-line filter that I can see through getting gas. I have tried everything I can think of
- Slim140
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1970 International 140
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Re: 1951 farmall cub starts easily then dies
No fuel pump? I'm stumped. Hopefully someone with more knowledge can help you.
Every home is a school, what are you teaching?
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Re: 1951 farmall cub starts easily then dies
Try a gravity fed inline fuel filter.
Remove the plug on the side of the carburetor. Sediment bowl valve fully open - turn until it back stops. Catch the fuel, let drain for a minute or two watching the fuel flow. You can do the same process by removing the fuel line hose to the carburetor - and then above the inline fuel filter. Trying to locate the fuel flow blockage.
Screen in carburetor inlet plugged.
Remove the plug on the side of the carburetor. Sediment bowl valve fully open - turn until it back stops. Catch the fuel, let drain for a minute or two watching the fuel flow. You can do the same process by removing the fuel line hose to the carburetor - and then above the inline fuel filter. Trying to locate the fuel flow blockage.
Screen in carburetor inlet plugged.
I have an excuse. CRS.
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Re: 1951 farmall cub starts easily then dies
Thanks for all the help. Still a work in process. Trying all suggestions. It is a up draft carb. Is it possible I have governor problems>
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Re: 1951 farmall cub starts easily then dies
Governor usually doesn't cause one to stop running. I don't suspect governor, but rather fuel starvation. One more thing to check, the gas cap should be vented; sometimes the vents are stopped up. Try removing gas cap and see if it keeps running (while stationary, of course).
Rick Spivey
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'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
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Re: 1951 farmall cub starts easily then dies
You all were on track with the strainer bowl and in line filter. Runs longer now but still dies after about two minutes. still thinking carburetor somehow.
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Re: 1951 farmall cub starts easily then dies
brakesnake wrote:You all were on track with the strainer bowl and in line filter. Runs longer now but still dies after about two minutes. still thinking carburetor somehow.
I would say you need to adjust your float. It's obviously not getting enough gas in the bowl to stay running after it runs what's in the bowl out and if you've fixed the strainer and filter problem the float adjustment is really all that's left. Did you try what Rick said with the gas cap? You can get a new gas cap for free here http://ihgascap.com/
Every home is a school, what are you teaching?
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Re: 1951 farmall cub starts easily then dies
With the tank valve on and the plug out of the bottom of the carb, how fast does the fuel run? If its a stream, fuel supply is enough.
What type of needle did you use in the carb rebuild? Rubber ones can stick.
I recently encountered stuck floats and needles on an old motorcycle...all 4 of them...just the slightest bit of friction will stick both needles and floats...
What type of needle did you use in the carb rebuild? Rubber ones can stick.
I recently encountered stuck floats and needles on an old motorcycle...all 4 of them...just the slightest bit of friction will stick both needles and floats...
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