Help me before i hall it to the scrap yard

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tomcat
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Help me before i hall it to the scrap yard

Postby tomcat » Mon Sep 12, 2016 8:00 pm

Well i am back to working on my cubs and about ready to quit again. I have a cub that won't run. i took the carb apart clean it up real good took the fuel strainer off put new screen and gasket in it put it all back together started right up run about a minute then died and started right back another min. Well after awhile and a few more times and some words i should not be using took the carb off my other cub same thing put the first carb on the tractor that runs started right up and ran good anyway the one cub will run with either carb the other cub won't. Now i am give out from all this typing. LOL Much more of this and it is going to the scrap yard. Not really but sounds good. please tell me what to do next. :help:

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Re: Help me before i hall it to the scrap yard

Postby Bob McCarty » Mon Sep 12, 2016 8:09 pm

Take out the main jet, open the shut off and make sure you have a good solid stream of gas for a minute. Sounds like there is still a fuel obstruction between the tank and carb.
Do you have an inline filter on the "bad" Cub?

Bob
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Bill Hudson
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Re: Help me before i hall it to the scrap yard

Postby Bill Hudson » Mon Sep 12, 2016 8:14 pm

Bob has you covered. Fuel starvation problem upstream from the carb. Both carbs work on the running Cub, the carb is not the problem. The fuel line (inline fuel filter), sediment bowl, or gas tank is/are the source of the problem.

Bill
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tomcat
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Re: Help me before i hall it to the scrap yard

Postby tomcat » Mon Sep 12, 2016 8:27 pm

i swap jets from carb. to carb still worked on the one cub pulled the fuel line off not plugged up took the whole sediment thing off cleaned it good little bit of rust in tank no in inline fuel filter just the screen in the bowl and that little screen in the carb. :lost:

brewzalot
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Re: Help me before i hall it to the scrap yard

Postby brewzalot » Mon Sep 12, 2016 8:54 pm

Bob McCarty wrote:make sure you have a good solid stream of gas for a minute


Did you do what Bob suggested ? For a minute?

tomcat
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Re: Help me before i hall it to the scrap yard

Postby tomcat » Mon Sep 12, 2016 9:13 pm

I tried it for just a few seconds i will do it again tomorrow and let it run a little longer and see what happens.

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Re: Help me before i hall it to the scrap yard

Postby cub&catman » Mon Sep 12, 2016 10:03 pm

Haul it to my place. I got apretty new snow blower that was doing the same thing. Gas line was plugged in fuel tank and the mechanics could'nt figure out why it would run for a while ,then quit, and then start up and run for a few seconds or minute, depending on how long it sat.

jpcubs
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Re: Help me before i hall it to the scrap yard

Postby jpcubs » Tue Sep 13, 2016 4:53 am

Thats where a Pony Tank comes in handy. I had a ant (insect) in the inlet of the fuel settlement bowl It would shut off fuel part of the time. I put another bowl on it. I cleaned the old one and found the bug.
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Rick Spivey
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Re: Help me before i hall it to the scrap yard

Postby Rick Spivey » Tue Sep 13, 2016 5:01 am

Don't forget to check the vents in the gas tank cap.
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Stanton
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Re: Help me before i hall it to the scrap yard

Postby Stanton » Tue Sep 13, 2016 6:38 am

Sounds like there's something in the gas tank (particles/sediment) that is swirling around blocking full fuel flow. If carb is good, fuel line is clear and sediment bowl clean, the blockage has to be further upstream in your tank.

Has the tank ever been emptied and cleaned?

Let us know, Tomcat. Hope everything else is going well for you.
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ctltmp
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Re: Help me before i hall it to the scrap yard

Postby ctltmp » Tue Sep 13, 2016 6:57 am

If you tried the pony tank (pretty simple to make one up) it certainly would tell the tale if there is some obstruction. I had a bug in a massey harris years ago causing blockage. Gave a fit until I found and removed him. All good thoughts to try from these guys.
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Re: Help me before i hall it to the scrap yard

Postby cab037 » Tue Sep 13, 2016 7:25 am

I just had a similar issue where gas would flow to the carb, but it wasn't enough to keep the enging running. Pulled the fuel line and blew it out and had a large amount of debris came out with the air. Ran like a top there after. So, I think the fuel flow; whether the restriction is in the tank, sediment bowl, or line; is the problem.

tomcat
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Re: Help me before i hall it to the scrap yard

Postby tomcat » Tue Sep 13, 2016 9:19 pm

Did not have time to mess with it today but i am going to put my pony tank on it like Johnny said. I wish i would have thought of that. Most of the time my thinker don't think to good. :lol:

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gitractorman
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Re: Help me before i hall it to the scrap yard

Postby gitractorman » Wed Sep 14, 2016 3:18 am

Sounds like crap in the tank plugging up the screen in the fuel bowl. Pretty common, and you even said you saw rust in the tank. That's your problem. A little rust or grass clippings, pine needles, leaves, anything like that, will cause exactly what you're describing. The debris stays suspended until fuel starts to go out of the tank, then it all collects at the outlet and plugs it up. Shut the engine off , fuel flow stops, and it goes back into suspension. Have seen it in MANY tractors.
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randallc
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Re: Help me before i hall it to the scrap yard

Postby randallc » Wed Sep 14, 2016 5:16 am

hey tomcat, did ya getter fixed. Gave you a call yesterday.
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